LINGVA
LATINA

Notes

The most frequent vowel in Latin. Short A is open [a]; long Ā is the same quality held longer — not a different vowel quality as in English "cat" vs. "father." Vowel length distinctions were phonemic: malum (evil) vs. māl­um (apple).

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B is a voiced bilabial plosive, identical to English B. Before S or T it was devoiced to [p] in speech: urbs (city) was pronounced closer to [urps]. B is relatively rare in Latin roots compared to P.

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This is the most important rule for Classical pronunciation. C is always [k] regardless of the following vowel. Caesar = [ˈkaɪ.sar], Cicero = [ˈkɪ.kɛ.roː]. Church Latin softens C before E/I to [tʃ], but this is a medieval change.

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D is a voiced dental/alveolar plosive. In Latin it was dental (tongue touches upper teeth) rather than alveolar (tongue at the ridge) as in English. This gives Latin D a slightly more forward, crisp quality. It never voiced to [ð] as in English.

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Short E is the open-mid [ɛ] vowel; long Ē is the close-mid [eː]. Both are pure vowels without the glide that English uses in words like "day." The diphthong AE = [ae̯], pronounced like English "eye." OE = [oe̯].

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F in Latin represents the labiodental fricative [f], identical to English. It evolved from the digraph PH in early Latin. The combination PH (used in Greek loanwords) was pronounced [pʰ] in Classical Latin, not [f] — that change came later.

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G is always the hard [g] stop in Classical Latin, never the soft [dʒ] of English "gem." G was derived from C in the 3rd century BCE (the Romans originally had no separate G). The abbreviation GN in names like Gnaeus was probably [ŋn].

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H was originally a full aspiration [h] but was weakening by Cicero's time. He mentions that educated Romans mocked those who dropped their Hs (hypercorrectors added them where they didn't belong). H disappeared entirely in Vulgar Latin and is absent in most Romance languages.

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I served triple duty in Classical Latin: as the short vowel [ɪ], the long vowel [iː], and the consonant [j] (like English "yes"). The letter J was invented in the Middle Ages to distinguish the consonantal use. In Classical texts, I covers all three values.

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K was largely replaced by C in Latin and appears only in a handful of traditional words before A: Kalendae (Kalends, the first of the month), Kaeso (a personal name). It was considered slightly old-fashioned or archaic even in Classical times.

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Latin L was always a clear [l], produced with the tongue at the alveolar ridge. English has two L sounds: clear L at the start of syllables ("law") and dark/velarized L at the end ("ball"). Latin never used the dark variant — all positions used the clear, bright [l].

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M is [m] as in English. However, final -M before a word beginning with a vowel was elided in poetry (elision) and was probably weakened to a nasal in speech. This explains why the accusative endings (-am, -em, -um) evolved into the Romance languages without the final consonant.

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N is [n] in most positions. Before a velar consonant (C, G, QU) it assimilated to [ŋ]: ancilla = [ˈaŋ.kɪl.la]. This is the same process in English "ankle" — the N before K becomes [ŋ]. Latin grammarians actually called the nasal before a velar the "agma" sound.

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Short O is the open-back [ɔ]; long Ō is the close-mid [oː]. Both are pure vowels. The diphthong OE (rare) was pronounced [oe̯]. AU (common) was [au̯] as in English "cow." Both diphthongs are found in English words of Latin origin: "foetus" preserves OE.

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P is [p] as in English. The digraph PH, used only in words borrowed from Greek, was pronounced as aspirated [pʰ] in Classical Latin — not as [f]. The change of PH to [f] happened later. So philosophia was [pʰɪ.lo.ˈsoː.pʰɪ.a], not [fɪ.lɒ.ˈsɒ.fɪ.ə].

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Q never appears without U in Latin. QU is always [kw]: qui = [kwiː], quod = [kwɔd], quam = [kwam]. This cluster was so stable that it passed into French (qui, que), Spanish (que), and through them into English words like "queen" and "quality."

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Latin R was a trill [r] or a flap [ɾ], similar to Spanish or Italian. It was never the retroflex approximant of American English. Between vowels a flap was probably common; word-initially and when doubled a full trill was used. Terra had a distinctly long trill.

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S in Classical Latin was always voiceless [s], never voiced [z] as in English "rose." The change of S between vowels to [z] happened in Vulgar Latin and survives in Italian and Portuguese. So Latin casa (hut) had an [s], while Italian casa has a [z].

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T is a dental [t] (tongue at upper teeth). The sequence TI before a vowel (as in natiō) was still [tɪ.oː] in Classical Latin — not [tsɪ.o] or [ʃo] as in later Church Latin or English words like "nation." That palatalization is a medieval development.

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In Classical Latin, V represented both the vowel U and the consonant [w]. The letter U and the distinction V/U were medieval inventions. Consonantal V before a vowel was [w]: vinum = [ˈwiː.nʊm]. This is why "Kaiser" (from Caesar) and "Tsar" preserve the original [k] sound while "wine" preserves the [w].

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X is always [ks], a cluster of two consonants treated as a single letter. It always makes the preceding syllable heavy (long by position), which affects accentuation. It derives from the Greek letter Chi (Χ) via Etruscan. In some early inscriptions GS or CS was written instead.

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Y was added to the Latin alphabet in the late Republic specifically to transcribe the Greek letter upsilon Υ in Greek loanwords. It represents the front rounded vowel [y] — like French U or German ü. Educated Romans tried to pronounce it correctly; the less educated often substituted [ɪ] or [ʊ].

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Z was added alongside Y for Greek loanwords only. It represented Greek zeta, which in Classical Greek was probably [dz]. In Latin it appears almost exclusively in words of Greek origin. Like Y, it was placed at the end of the alphabet to signal its foreign origin.

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