Words formed from any letters in factorships plus optional blank

w -

wort₇

wost₇

wots₇

wrap₁₀

writ₇

y -

yaps₉

yips₉

z -

zaps₁₆

zarf₁₆

zips₁₆

zits₁₃

zoic₁₆

zori₁₃