ə̇nˈkər]zhən, -kə̄], -kəi], chiefly Brit ]shən noun
( -s )
Etymology: Middle English, invasion, from Middle French or Latin; Middle French, from Latin incursion-, incursio, from incursus (past participle of incurrere to run into, attack, incur) + -ion-, -io -ion — more at incur
1. : an entering into a territory with hostile intention : a sudden invasion : a predatory or harassing inroad : raid
partners in the Suez incursion — Newsweek
2.
a. : a running, bringing, or entering in or into
incursion of water through a weakened seam
his only incursion into the arts
the inevitable incursion of new techniques
b. : such action involving vigorous, forceful, or determined effort
the barrier should have been sufficient to protect the adjoining owner against the incursions, not of all pigs, but of pigs of average vigor and obstinacy — B.N.Cardozo
a very sudden incursion of “ah” into London speech between 1780 and 1790 — C.H.Grandgent