Words formed from any letters in packsacks plus optional blank

t -

task₈

tass₄

tsks₈

u -

upas₈

v -

vacs₁₁

vasa₈

w -

wack₁₄

waps₁₀

wasp₁₀

y -

yack₁₃

yaks₁₀

yaps₉

z -

zaps₁₆