Nouns

(n)splayan outward bevel around a door or window that makes it seem larger

Verbs

(v)splayspread open or apart“He splayed his huge hands over the table”
(v)turn out, splay, spread out, rotateturn outward“These birds can splay out their toes”, “ballet dancers can rotate their legs out by 90 degrees”
(v)dislocate, luxate, splay, slipmove out of position“dislocate joints”, “the artificial hip joint luxated and had to be put back surgically”

Adjectives

(s)splayturned outward in an ungainly manner“splay knees”