Birds of calm sir brooding on the charmed wave.
--Milton.
2. To have the mind dwell continuously or moodily on a
subject; to think long and anxiously; to be in a state of
gloomy, serious thought; -- usually followed by over or
on; as, to brood over misfortunes.
Brooding on unprofitable gold. --Dryden.
Brooding over all these matters, the mother felt
like one who has evoked a spirit. --Hawthorne.
When with downcast eyes we muse and brood.
--Tennyson.