English
espouser
From espouse + -er.
Formed from espouse + -er
Proto-Indo-European *spend- ‘to libate’
Latin spōnsāre
Old French espouser ‘to marry’
Middle English espousen
English espouse
Today it means
noun One who espouses; one who embraces or adopts a cause.
Language periods are conventional ranges, not dates for this word.
Etymograph / espouser