Why is the ninth month called September?
1610s, "to thrust forward or onward, to drive along;" 1640s, "to cause to stick out," from Latin protrudere "thrust forward; push out," from pro- "forward" (see pro-) + trudere "to thrust" (see extrusion). Intransitive meaning "jut out, bulge forth" recorded from 1620s. Related: Protruded; protruding.
protrude pro·trude (prō-trōōd')
v. pro·trud·ed, pro·trud·ing, pro·trudes
To push or thrust outward.
To jut out; project.