Bretrick learnt a new word today

[Bretrick]

Cumshaw - Bonus, Tip, Extra
Cumshaw is from a word that means "grateful thanks" in the dialect of Xiamen, a port in southeast China.
Apparently, sailors heard it from the beggars who hung around the ports, and mistook it as the word for a handout.

 

[Hackney]

It's a real word for sure. Don't think I'd ever use it though. That c-u-m prefix makes it sound way too dodgy