-ёный

Etymology
Compare the past-passive-participle suffix.

Usage notes
For most such adjectives, short forms in, , , exist theoretically, but are usually avoided due to ambiguity with the short forms of the corresponding past passive participle in  (in the case of , ,  the ambiguity is with colloquial forms; the corresponding standard short forms for participles in  are , , ). However, this doesn't apply to some adjectives, e.g., where the short forms are in normal use.