thrive
Pronunciation: /θrʌɪv/
verb ( thrives, thriving, past throve /θrəʊv/ or thrived; past participle thriven /ˈθrɪv(ə)n/ or thrived)

Origin:
Middle English (originally in the sense 'grow, increase'): from Old Norse thrífask, reflexive of thrífa 'grasp, get hold of'. Compare with thrift