What is "clechy"

Clechy \Cle"chy\, a. See Cl['e]ch['e].

also cleche, "pierced through with a figure of the same kind," from French cléché (17c.), from Latin *clavicatus "key-holed," or clavicella "little key," from clavis "key" (see slot (n.2)).

a. (context heraldry English) (alternative form of cléché English)