Meaning of -ESS in English

-ESS

1.

suffix forming nouns denoting females (actress; lioness; mayoress).

Etymology: from or after F -esse f. LL -issa f. Gk -issa 2.

suffix forming abstract nouns from adjectives (duress).

Etymology: ME f. F -esse f. L -itia; cf. -ICE

Oxford English vocab.      Оксфордский английский словарь.