From Latinintersecare ("to cut between, cut off"), from inter ("between") + secare ("to cut").
Full definition of intersect
Verb
To cut into or between; to cut or cross mutually; to divide into parts.Parallel lines don't intersect.Any two diameters of a circle intersect each other at the centre.
CowperLands intersected by a narrow frith Abhor each other.
(mathematics) of two sets, to have at least one element in common