Nidulus, níduli, m. g. pen. cor. Cic.A little nest.
Lewis and Short: Latin dictionary
nīdŭlus, i, m.dim. [id.], 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.