aid
aid and abet help and encourage (someone) to do something wrong, especially to commit a crime.
2013Shaun AttwoodJon's Jail Journal We could get fined and who knows, we could cop our own charges of aiding and abetting an escape.
in aid of in support of; for the purpose of raising money for. chiefly British
2013Farmers Weekly They're hoping to raise £10,000 in aid of the charities, to be split between Cancer Research UK and Worcester Samaritans.
what's this in aid of? what is the purpose of this? British informal