intersection (n.) Look up intersection at
1550s, "act or fact of crossing," from Middle French intersection (14c.) and directly from Latin intersectionem (nominative intersectio) "a cutting asunder, intersection," noun of action from past participle stem of intersecare "intersect, cut asunder," from inter- "between" (see inter-) + secare "to cut" (see section (n.)). In English originally a term in geometry; meaning "crossroads, a place of crossing" is from 1864. Related: Intersectional.