English
manspreading
From man + spreading.
Proto-Germanic *mann- ‘human being, person, man’
Proto-West Germanic *mann ‘person’
Old English mann ‘human being, person, man’
Middle English man
English man
The story
Popularized in 2014, perhaps patterned after mansplaining.
Today it means
noun The practice of men splaying their legs open wide when sitting on public transport, thus occupying more than one seat.
Language periods are conventional ranges, not dates for this word.
Etymograph / manspreading