Al′le‐ga″tion (�), n. [L. allegatio, fr. allegare, allegatum, to send a message, cite; later, to free by giving reasons; ad + legare to send, commission. Cf. Allege and Adlegation.] 1. The act of alleging or positively asserting.
2. That which is alleged, asserted, or declared; positive assertion; formal averment
I thought their allegation but reasonable.
Steele.
3. (Law) A statement by a party of what he undertakes to prove, — usually applied to each separate averment; the charge or matter undertaken to be proved.