сов. разг.
(+ инф. ) take* to (+ ger. ); ( без доп. ) ( ходить куда-л. ) become* a constant / regular visitor ( at a place )
он к нам зачастил — he has taken to visiting us, he is a constant / regular visitor at our house*
дождь зачастил — it began to rain harder, the rain began to pelt down