Webster's Revised Unabridged Dictionary · 1913

Intercourse

Intercourse , noun

[Formerly entercourse, Old French entrecours commerce, exchange, French entrecours a reciprocal right on neighboring lands, Latin intercursus a running between, from intercurrere to run between. See Inter-, and Course.]

1.
A commingling; intimate connection or dealings between persons or nations, as in common affairs and civilities, in correspondence or trade; communication; commerce; especially, interchange of thought and feeling; association; communion.
This sweet intercourse Of looks and smiles. — Milton
2.
Same as sexual intercourse.
Collocations (1)
Sexual intercourse , sexual or carnal connection; coition; copulation, especially between humans.