n.
Function: transitive verb
Date: 15th century
1 a : to sit on or incubate (eggs) b : to produce by or as if by incubation : HATCH
2 of a bird : to cover (young) with the wings
3 : to think anxiously or gloomily about : PONDER
intransitive verb
1 a of a bird : to brood eggs or young b : to sit quietly and thoughtfully : MEDITATE
2 : HOVER , LOOM
3 a : to dwell gloomily on a subject b : to be in a state of depression
– brood · ing · ly \ ' brü-di ŋ -l ē \ adverb