allege

From Middle English aleggen, perhaps from Old French alleguer, or from Anglo-Norman aleger, the form perhaps from Old French esligier (“to acquit”), from Medieval Latin *exlītigāre (“to clear at law”), from Latin ex (“out”) + lītigō (“sue at law”), but the meaning from Old French alleguer, from Latin allēgāre (“send on a mission, depute; relate, mention, adduce”), from ad (“to”) + lēgō (“send”). See also al-.

From Middle English alleggen, from Old French alegier, from Latin alleviāre (“lighten”), from ad + levis (“light”). Doublet of alleviate.