Cahier \Ca`hier"\ (k[.a]`y[asl]" or k[.a]`h[=e]r), n. [F., fr. OF. cayer, fr. LL. quaternum. See {Quire} of paper. The sheets of manuscript were folded into parts.] 1. A number of sheets of paper put loosely together; esp. one of the successive portions of a work printed in numbers. 2. A memorial of a body; a report of legislative proceedings, etc.