Feral means wild, though descended from tame animals. A feral cat, feral pigeons, gone feral.
The distinction from wild matters: a feral cat is a domestic cat living wild, and its ancestors were somebody's pets. Feral populations do enormous damage where they are not native, and cats are among the worst offenders for wildlife.
1adjectiveferalWild, though descended from tame animals.
“Feral goats roam the island, eating every plant they can reach.”
feral is a state.
Latin ferus means wild, from a root meaning a wild beast. Fierce and ferocity are relatives.
Proto-Indo-European
*ǵʰwer-
Latin
ferālis
Middle French
féral
English, today
feral
From fera + -al or ferus + -al. Alternatively, borrowed from Middle French féral or Latin ferālis.
Etymology from Wiktionary, CC BY-SA