proven


proven
prov|en1 [ˈpru:vən, ˈprəuvən US ˈprouvən, ˈpru:vən] adj
[usually before noun]
tested and shown to be true or good, or shown to exist
a player of proven ability
a telephone system with a proven track record (=past performance showing how good it is) of reliability
proven 2
prov|en2 [ˈpru:vən] v especially AmE
a past participle of ↑prove

Dictionary of contemporary English. 2013.