(intransitive) To intrude unrightfully on someone else’s rights or territory.
Now stands the Brere like a lord alone, / Puffed up with pryde and vaine pleasaunce. / But all this glee had no continuaunce: / For eftsones winter gan to approche; / The blustering Boreas did encroche, / And beate upon the solitarie Brere; / For nowe no succoure was seene him nere.
I won’t encroach on your time any longer.
He never allows work to encroach upon his family life.
Gradually the negative feelings encroached into her work.
(intransitive) To advance gradually beyond due limits.