SG Heritage Dictionary

Countess [Noun] Webster's Dictionary 1828

The consort of an earl or count.

Countess [Noun] Webster's Dictionary 1913

The wife of an earl in the British peerage, or of a count in the Continental nobility; also, a lady possessed of the same dignity in her own right. See the Note under Count.

Countesses [Plural] Webster's Dictionary 1913

of Countess