2707. In these, the fundamental foot is the choriambus (-́ ⏑ ⏑ -̇). True
choriambic verse is very rare in Latin poetry, though apparent choriambi
of the form -́ ⏖ | - or -́ ⏖ | ⏗́ are common in logaoedic verse (2652).
Apparently, however, in Terence, _Ad._ 611-13,
Út neque quid | mḗ faciam | néc quid agam # certúm | sit.
mémbra metū | dḗbilia | súnt, animus # timṓ|re
óbstipuit, | péctore cōn|sístere nīl # cōnsi|lī́ quit,
there are three choriambic trimeters, the first two with iambic close,
the third with trochaic. In the second line there is _syllaba anceps_ at
the end of the second choriambus. In Plautus, _Casina_ 629, _Menaechmi_
110, and perhaps _Asinaria_ 133, we have a choriambic dimeter + an
acatalectic trochaic dipody.
Owing to the frequent occurrence of the apparent choriambus in certain
kinds of logaoedic verse, the metricians of Horace’s day regarded them
as really choriambic. Hence the rule mentioned in 2652, a rule unknown
to Greek writers of logaoedic verse.