Meaning

verb declare to be true or admit the existence or reality or truth of

verb allow to enter; grant entry to

verb allow participation in or the right to be part of; permit to exercise the rights, functions, and responsibilities of

originFrom Middle English admitten, amitten, borrowed from Old French admettre, amettre (“to admit”), from Latin admittō (“to allow entrance, inlet”, literally “to send to”), from ad- + mittere (“to send”).

Etymology from Wiktionary, CC BY-SA 3.0