Swain (horse)
WordNet
noun
(1) A man who is the lover of a girl or young woman
"If I'd known he was her boyfriend I wouldn't have asked"
WiktionaryText
Etymology
Via from , akin to Old English . From , (relative, young man, servant), from (aside, separated, apart).
Noun
- A servant. Originally the servant to a Knight, looking after his armaments and horse.
- A young man dwelling in the country; a rustic; esp., a country gallant or lover; — chiefly in poetry. Hence, the road name "Swains' Lane" can be translated to "Lovers' Lane".
- A boyfriend; a man who is the lover of a woman.