I. ˈsi-mər verb
( sim·mered ; sim·mer·ing ˈsi-mə-riŋ, ˈsim-riŋ)
Etymology: alteration of English dialect simper, from Middle English simperen, of imitative origin
Date: 1653
intransitive verb
1. : to stew gently below or just at the boiling point
2.
a. : to be in a state of incipient development : ferment
ideas simmer ing in the back of my mind
b. : to be in inward turmoil : seethe
transitive verb
: to cook slowly in a liquid just below the boiling point
II. noun
Date: 1809
: the state of simmering