a. Obs. rare–1. [f. CLOISTER, on OF. type *cloistros, -ous, -eus, L. type *claustrōsus: see -OSE.] Pertaining to a cloister, monastic.
c. 1449. Pecock, Repr., V. vi. 517. Tied to close and cloistrose obseruauncis.
