mush¹ / məsh/ • n. 1. a soft, wet, pulpy mass: she trudged through the mush of fallen leaves. ∎ fig. feeble or cloying sentimentality: the film's not just romantic mush.2. thick porridge, esp. made of cornmeal.• v. [tr.] [usu. as adj.] (mushed) reduce (a substance) to a soft, wet, pulpy mass: simmer until the apples and potatoes are tender but not mushed.mush² • v. [intr.] go on a journey across snow with a dogsled: by the end of winter he will have snowshoed up to 700 miles and mushed about the same. ∎  [tr.] urge on (the dogs) during such a journey.• interj. a command urging on dogs during such a journey.• n. a journey across snow with a dogsled: a twelve-day mush.

mush (N. Amer.) porridge made with meal XVII; (f. the vb.) pulpy mess or substance XIX. prob. symbolic alt. of MASH.
So vb. XVIII. Hence mushy XIX.

mush American; cakes of boiled ground rice served cold or fried.