What does nīdulus mean in Latin?

nīdulus, a noun, means “little nest”.

What is the genitive of nīdulus?

The genitive singular is nīdulī. nīdulus is masculine, second declension.

nīdŭlus, i, m. dim. id.,

I. a little nest.

I. Lit.: Ithacam illam, in asperrimis saxulis, tamquam nidulum, affixam, Cic. de Or. 1, 44, 196; Gell. 2, 29, 2.—*

II. Trop., a place of retirement: senectutis, Auct. ap. Plin. Ep. 6, 10, 1: opuscula mea, quia plurima evolaverunt de nidulo suo, Hier. Ep. 47, 3.