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