Labor, work, toil, strive, be alert, hasten, lose no time, be lively, look alive, fall to work, exert one's self, rouse one's self, trouble one's self, busy one's self, take pains, be busy, be active, be quick, bear a hand.
BESTIR ONE'S SELF
Meaning of BESTIR ONE'S SELF in English
Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012