the.com/intercourse

means Originally just meant communication or dealings between people — only later narrowed to its exclusively sexual sense as the default meaning.

from From Latin inter- ('between') plus cursus ('a running, a course'), via French — so literally a 'running between.' It entered English meaning exchange of any kind: letters, trade, conversation, social dealings. 'Social intercourse' once meant simply hanging out and talking. The sexual sense existed alongside the general one for centuries, but by the 20th century it had elbowed out the others so thoroughly that writers now avoid the word entirely when they just mean 'communication,' for fear of unwanted snickering.