ETYMOLOGY
from Middle French aidance, from aider (aid) + -ance
EXAMPLE
“… All swolne with chafing, downe Adonis sits,
Banning his boystrous, and vnruly beast;
And now the happie season once more fits
That louesicke loue, by pleading may be blest:
For louers say, the heart hath treble wrong,
When it is bard the aydance of the tongue. …”
From: Venus and Adonis
By William Shakespeare, 1593
Lexicophilia 