rub up on

Refresh one's knowledge, as in I must rub up on my French before we leave for Paris. [Second half of 1700s] Also see brush up, def. 2.

To refresh one's knowledge of: I have to rub up on my French.

Name	Pronounced	Usage
Kemp	[kemp]
Yamila	-	Spanish (Latin American)
Suoma	SOO-o-mah	Finnish
Emory	['eməri]
Bess	BES	English
Archbold	['a:tʃbəuld]