"striven" in the verb sense
1. endeavor, endeavour, strive
attempt by employing effort
"we endeavor to make our customers happy"
2. strive, reach, strain
to exert much effort or energy
"straining our ears to hear"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License