English
equestrienne
From equestrian + -ienne.
Formed from equestrian + -ienne
Proto-Indo-European *h₁eḱ-
…
Proto-Italic *ekwos ‘horse’
Latin equus ‘horse’
Latin eques ‘horseman, cavalryman, rider’
Latin equester ‘of or pertaining to equestrians/cavalry’
English equestrian
Today it means
noun A female equestrian.
Language periods are conventional ranges, not dates for this word.
Etymograph / equestrienne