Words formed from any letters in thwackers plus optional blank

o -

wrote₈

wroth₁₀

u -

wurst₉

y -

wytes₁₀

yacht₁₂

yacks₁₄

years₇

yeast₇

yechs₁₂

yerks₁₁

z -

zerks₁₈

zetas₁₄