1530, aphetic of Anglo-Norm. acloyer,
from O.Fr. enclouer
"to fasten with a nail, hinder, cripple a horse by driving a nail into the hoof," from clou
"a nail," from V.L. inclavare,
from L. clavus
"a nail" (see slot
(2)). Meaning "to fill to loathing, surfeit" is first recorded 1530.