phalangius
Could not find phalangi in Logeion dictionaries.
phalangi Noun: masculine genitive singular, Noun: masculine vocative singular of phalangius
phalangi Noun: neuter genitive singular of phalangium
phalangi Noun: feminine dative singular of phalanx
phălangĭus, ĭī, m. , c. phalangium : Veg. Mul. 2, 143, 1.