6

Is there any rule to the length of e in -ensis?

I looked up the following words in Perseus (which give entries from 'Lewis & Short' and 'Elem. Lewis') and Wiktionary, without being able to discern any pattern.

Lewis & Short | Elem. Lewis | Wiktionary

āmănŭensis | --- | āmanuēnsis
ātrĭensis | ātriēnsis | ātriēnsis
--- | --- | Carthāginiensis
cŏmĭtātensis | --- | ---
Circensis | Circēnsis | circēnsis
prātensis | prātēnsis | prātēnsis

("---" means there was no entry)

7

It's always long, but some dictionaries don't bother to mark the length since it's "long by position" anyway, so it doesn't matter for a metrical point of view.

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8

As varro says, it's always long. This is predictable as one example of a more general rule that any vowel is long before "ns" or "nf".

This rule is thought to be the result of "compensatory lengthening" or assimilation. We have evidence that in at least some accents of Latin, at some point in time, the consonant sound [n] was lost before [s] and [f]: thus the suffix -ensis corrresponds to Italian -ese, Portuguese -ês, and French -ois/-ais.

The [n] isn't thought to have just disappeared all in one step. It is supposed to have fused with the preceding vowel, producing a long nasalized vowel. Then later on, the vowel denasalized, resulting in the complete loss of nasality seen in the modern Romance pronunciations of the suffixes mentioned above.

(I don't know enough to give a good explanation, but the loss of [n] before the voiceless fricatives [s] and [f] and the corresponding "compensatory lengthening" of the preceding vowel is a phonetically natural sound change. A similar change applied in the history of English, and is why our word goose/geese corresponds to Latin anser.)

Allen (1978) actually says that in Classical Latin the nasal consonant was restored in these clusters (at least in some words and in higher registers of speech), but due to the "artificial" nature of this restoration, the vowel continued to be pronounced long, resulting in what some call a "super-heavy" syllable with a long vowel followed by a coda consonant. (In Latin, "super-heavy" syllables behave exactly like normal heavy syllables metrically, as varro mentions.)

The development in a word such as consul, therefore, is: prehistoric cŏnsol, early Latin cō̃sol; classical colloquial cōsul; classical literary cōnsul. (Vox Latina 2nd edition, p. 29-30)

Unmarked doesn't necesssarily mean "short"

Lewis & Short/Elem. Lewis don't always mark the length of a vowel. If it has a breve, they're saying it's short, but if it's unmarked, they aren't saying either way: you don't know if it is long or short. Sometimes this could be because they were unsure, or sometimes it's because they don't think the information is important (for example, vowel length doesn't affect scansion in closed syllables, and they assume that the reader will already be familar with the length of vowels in common suffixes such as -us, -i).

If a vowel letter is marked with a macron in L&S, that usually means it corresponds to a long vowel, but there are a few questionable cases like

  • "lucubro", which L&S give as lūcū^bro but which probably always had a short "u" in the second syllable. The second syllable would be able to scan long even with a short vowel because of variable syllable division of "br" as ".br" or "b.r". Wiktionary gives the etymology as Proto-Indo-European *lewk-o-dʰro-, which wouldn't regularly give rise to a long vowel before the br.

  • "horizon," which L&S give as "hŏrīzon" but which probably had a short "i", in a syllable that scanned long because of the double consonant "z"

  • "major," which L&S give as "mājor" but which probably had a short "a", in a syllable that scanned long because of the double consonant "j"

Overall, I'd recommend being a bit suspicious of macrons in L&S on vowels in the following contexts: before a mute + liquid cluster, before "z" or "j", and occasionally before a word-final consonant (my impression is that it's somewhat unclear whether words like far, farris ever had a long vowel in the nominative singular; some authors suggest that instead the consonant was long before a following word starting with a vowel). I give a few more references and examples in my answer to What effect should a macron have on the sound of a letter and its word?

Wiktionary does not use breves, so in that specific context unmarked vowel letters are supposed to be short (or non-syllabic).

The only inconsistency I see in the dictionary entries that you cite is the lack of a macron in Wiktionary's entry for "Carthāginiensis", which is presumably just an error.

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  • 1
    Thank you! On 'any vowel is long before "ns" or "nf"'--would that apply to 'mānsūrus'? (Obviously it must.) Wiktionary's inflection table for the verb (see: en.wiktionary.org/wiki/maneo#Inflection) gives 'mānsūrus', but the entry for the participle itself (see en.wiktionary.org/wiki/mansurus#Inflection) gives 'mansūrus' etc. I believe this is what Wiktionary does for many similarly formed participles. – Catomic Sep 2 '17 at 1:29

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