intersection (n.) Look up intersection at Dictionary.com
"act or fact of crossing," 1550s, 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). Originally a term in geometry; meaning "crossroads" is from 1864.