Meaning

adjective having or as if having limbs, especially limbs of a specified kind (usually used in combination)

originFrom Middle English ilimed (“having limbs, limbed”) [and other forms], from i- (prefix forming adjectives, past participles, etc.) + lim (“organ or part of the body, member; extremity of an animal or human body, limb; sexual organ; a person as a member of the group of all Christians; follower; liegeman; corner of a siege tower; arm of the sea; branch of a subject”) (see further at lim) + -ed…

Etymology from Wiktionary, CC BY-SA 3.0