-et
1.
a noun suffix having properly a diminutive force (now lost in many words):
islet; tablet; midget; plummet.
Compare
-ette
.
Origin
Middle English
<
Old French
-et
(masculine),
-ette
(feminine)
British Dictionary definitions for
-et
-et
suffix
1.
small or lesser:
islet,
baronet
Word Origin
from Old French
-et, -ete