What does adelphis mean in Latin?

adelphis, a noun, means “type of date (that hangs in pairs)”.

What is the genitive of adelphis?

The genitive singular is adelphidis. adelphis is feminine, third declension.

In classical Latin, [aˈdɛɫ.pʰɪs]; in ecclesiastical (church) Latin, [aˈdɛl.fis].

noun · femininethird declension

adelphis f (genitive adelphidis)

Classical[aˈdɛɫ.pʰɪs]Ecclesiastical[aˈdɛl.fis]

ădelphĭs, ĭdis, f. ἀδελφή, sister; so called as resembling the caryotis, or because they hung two together from a branch,

I. a kind of date, Plin. 13, 4, 9, § 45.

Borrowed from Ancient Greek ἀδελφίς (adelphís).