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Webster 1913 Edition

Adj.

[F.

allègre

, earlier

alègre

, fr. L.

alacer

Gay; cheerful; sprightly.

[Obs.]

Bacon.

Adj.

[L. alacer.]

Gay; cheerful; sprightly. [Not used.]

aleger ‎(comparative more aleger, superlative most aleger)

(obsolete) gay; cheerful; sprightly
- 1627, Francis Bacon, Sylva Sylvarum:
  Certainly this berry coffa, the root and leaf betel, the leaf tobacco, and the tear of poppy (opium), of which the Turks are great takers (supposing it expelleth all fear), do all condense the spirits, and make them strong and aleger.