Webster's Revised Unabridged Dictionary · 1913

Intrude

Intrude , intransitive verb

[Latin intrudere, intrusum; pref. in- in + trudere to thrust, akin to English threat. See Threat.]

To thrust one's self in; to come or go in without invitation, permission, or welcome; to encroach; to trespass; as, to intrude on families at unseasonable hours; to intrude on the lands of another.
Thy wit wants edge And manners, to intrude where I am graced. — Shakespeare
Some thoughts rise and intrude upon us, while we shun them; others fly from us, when we would hold them. — I. Watts

Intrude , transitive verb

1.
To thrust or force (something) in or upon; especially, to force (one's self) in without leave or welcome; as, to intrude one's presence into a conference; to intrude one's opinions upon another.
2.
To enter by force; to invade. [Obsolete]
Why should the worm intrude the maiden bud? — Shakespeare
3.
(Geology) The cause to enter or force a way, as into the crevices of rocks.