What does allege mean?
The definition of allege
Al*lege”, v. t.
[imp. & p. p. Alleged; p. pr. & vb. n. Alleging.]
Etym: [OE. aleggen to bring forward as evidence, OF. esligier to buy, prop. to free from legal difficulties, fr. an assumed LL. exlitigare; L. ex + litigare to quarrel, sue (see Litigate). The word was confused with L. allegare (see Allegation), and lex law. Cf. Allay.]

1 To bring forward with positiveness; to declare; to affirm; to assert; as, to allege a fact.
2 To cite or quote; as, to allege the authority of a judge. [Archaic]
3 To produce or urge as a reason, plea, or excuse; as, he refused to lend, alleging a resolution against lending.

Synonyms
— To bring forward; adduce; advance; assign; produce; declare; affirm; assert; aver; predicate.

Al*lege”, v. t.
Etym: [See Allay.]

To alleviate; to lighten, as a burden or a trouble. [Obs.] Wyclif.