coucher noun¹. ['kaʊtʃǝ] LME.
[App. Anglo-Norman, from base of Old & mod. French couche: see COUCH noun¹, -ER². Cf. French coucheur.]
1. A person lying down (rare); Scot. a laggard, a coward. LME.

2. a. A large book; esp. a large breviary permanently on a desk in a church etc. LME-M16.
b. More fully coucher-book. A large cartulary or register. E17-L19.

[TahlilGaran] English Dictionary ▲

coucher noun². ['kaʊtʃǝ] M18.
[from COUCH verb + -ER¹: cf. French coucheur, couchart.]
Paper-making. A person who or thing which couches pulp to be pressed.

[TahlilGaran] English Dictionary ▲