intrude
Concise Oxford English Dictionary © 2008 Oxford University Press:
intrude/ɪnˈtruːd/
▶verb
- 1 come into a place or situation where one is unwelcome or uninvited.
■ introduce into or enter with adverse effect.
- 2 Geology (of igneous rock) be forced or thrust into (a pre-existing formation).
– origin C16 (orig. as entrude): from L. intrudere, from in- ‘into’ + trudere ‘to thrust’.
'intrude' also found in these Oxford entries:

