your, yeti, yens, yank
Yews
Some four letter words that start with Y are:yankyardyarnyawnyeahyearyellyelpyipeyogayokeyolkyoreyouryowlyuckyuleyurt
Yule and yoke
ably, achy, awry, ally, arty
No word starting with the letter y contains the letter x.
yelling
yak
a four letter word starting with Y could be: Yolk (as in an egg yolk) Yack Yarn Yawn York
Yummy
young
It is every.
Oh, dude, the longest word starting with the letter Y is "yttrium." It's like 7 letters long, so I hope you have the energy to say it all in one breath. But hey, at least now you can impress your friends at your next Scrabble game with your knowledge of obscure Y words.