tache

[tach] /tætʃ/
noun, Archaic.
1.
a buckle; clasp.
Origin
1400-50; late Middle English < Middle French < Germanic. See tack1
British Dictionary definitions for tache

tache1

/tæʃ; tɑːʃ/
noun
1.
(archaic) a buckle, clasp, or hook
Word Origin
C17: from Old French, of Germanic origin; compare tack1

tache2

/tæʃ/
noun
1.
(informal) short for moustache
tache in Medicine

tache (tāsh, täsh)
n.
A circumscribed discoloration of the skin or mucous membrane, as a freckle.