dwell /dwel/ BrE AmE verb ( past tense and past participle dwelt /dwelt/ or dwelled ) [intransitive always + adverb/preposition]
[ Language: Old English ; Origin: dwellan ]
literary to live in a particular place:
They dwelt in the forest.
dwell on/upon something phrasal verb
to think or talk for too long about something, especially something unpleasant:
That is not a subject I want to dwell on.