N. essay, trial, endeavor, attempt, aim, struggle, venture, adventure, speculation, coup d'essai, debut, probation

V. try, essay, experiment, endeavor, strive, tempt, attempt, make an attempt, venture, adventure, speculate, take one's chance, tempt fortune, try one's fortune, try one's luck, try one's hand, use one's endeavor, feel one's way, grope one's way, pick one's way, try hard, push, make a bold push, use one's best endeavor, do one's best

Adj. essaying, experimental, tentative, empirical, probationary

Adv. experimentally, on trial, at a venture, by rule of thumb, if one may be so bold

Phr. aut non tentaris aut perfice, chi non s'arrischia non guadagna