brood over

He returned in ten minutes or so, having sat for that period behind a neighbouring tree to brood over his circumstances.

The conflict rendered her miserable and she returned to her country seat to brood over it.

Left alone, he began to speculate perpetually about himself, to brood over anxious guesses.

A mild and pensive humility of manner seemed to brood over him, like the shadow of a cloud.

He liked to brood over the story; but he learnt more than fairy tales from his mother's memories of the old land.