Words formed from any letters in frumpish plus optional blank

a -

simar₈

spahi₁₀

supra₉

surah₈

b -

shrub₁₁

e -

sieur₆

speir₈

sperm₁₁

spier₈

spire₈

sprue₉

spume₁₂

super₉

usher₈

f -

spiff₁₄

g -

shrug₁₀

sprig₁₀

sprug₁₁

k -

skimp₁₅

smirk₁₂

l -

slump₁₃

slurp₁₀

n -

spurn₁₀

unhip₁₂

unrip₁₀

s -

simps₁₁

spurs₉

sumps₁₂

surfs₉

sushi₈

t -

situp₉

smith₁₀

spirt₈

sprit₈

spurt₉

stirp₈

strip₈

strum₉

stump₁₂

thrip₁₀

thrum₁₁

thump₁₄

trims₈

trips₈

trump₁₂

tumps₁₂

turfs₉

turps₉

u -

usurp₁₀

v -

virus₁₀

w -

whims₁₃

whips₁₃

whirs₁₀

whump₁₇

wimps₁₄

y -

spiry₁₀

spumy₁₄

surfy₁₁

syrup₁₁