To Stow

1. (transitive or intransitive or ergative) To cook (food) by slowly boiling or simmering.
2. (transitive) To brew (tea) for too long, so that the flavour becomes too strong.
3. (intransitive, figurative) To suffer under uncomfortably hot conditions.
4. (intransitive, figurative) To be in a state of elevated anxiety or anger.

(suffer under hot conditions): bake, boil, sweat, swelter

(be in a state of elevated anxiety): brood, fret, sweat, worry