There are 2 main definitions of -et in English:

-et1

suffix

Forming nouns which were originally diminutives: baronet hatchet tablet

Origin

from Old French -et, -ete.

Definition of -et in:

There are 2 main definitions of -et in English:

-et2

(also -ete)

suffix

Forming nouns such as comet, and often denoting people: athlete poet

Origin

from Greek -ētēs.

Definition of -et in: