Sim"mer (?), v. i. [imp. & p. p. Simmered (?); p. pr. & vb. n. Simmering.] [Prov. E. also simper; -- an onomatopoetic word.]
To boil gently, or with a gentle hissing; to begin to boil.
I simmer as liquor doth on the fire before it beginneth to boil.
Palsgrave.
© Webster 1913.
Sim"mer, v. t.
To cause to boil gently; to cook in liquid heated almost or just to the boiling point.
© Webster 1913.