knuckle down to something

knuckle down (to something)

in. to get busy doing something. Please knuckle down to your studies.

Name	Pronounced	Usage
Bihotz	-	Basque
Stew	STOO, STYOO	English
Italus	-	Roman Mythology
ŠIwa	-	Slavic Mythology
Hephzibah	HEF-zi-bə (English), HEP-zi-bə (English)	Biblical
Ippolito	-	Italian