cwms (Welsh for Valley(s))
A four letter word starting with the letter a is able.
preposterous
jest
A four letter word starting with J is jump or joke.
urge
MakeMindMineMastMassMustMeatMeetMinkMireMadeMaidMazeMoreMood
i poop i drink pie
a four letter word starting with Y could be: Yolk (as in an egg yolk) Yack Yarn Yawn York
Ham.
Merl
kook
monk