brood
vb
1 agonize, dwell upon, eat one's heart out, fret, have a long face, meditate, mope, mull over, muse, ponder, repine, ruminate, think upon
2 cover, hatch, incubate, set, sit upon
n
3 breed, chicks, children, clutch, family, hatch, infants, issue, litter, offspring, progeny, young