Words formed from any letters in seventies plus optional blank

w -

west₇

wets₇

wine₈

wins₈

wise₇

wiss₇

wist₇

wite₇

wits₇

wive₁₁

y -

yens₇

yeti₆

yins₇

z -

zees₁₃

zein₁₄

zest₁₃

zins₁₄

zits₁₃