"dogged" in the verb sense
1. chase, chase after, trail, tail, tag, give chase, dog, go after, track
go after with the intent to catch
"The policeman chased the mugger down the alley"
"the dog chased the rabbit"
"dogged" in the adjective sense
1. dogged, dour, persistent, pertinacious, tenacious, unyielding
"the most vocal and pertinacious of all the critics"
"a mind not gifted to discover truth but tenacious to hold it"- T.S.Eliot
"men tenacious of opinion"
Source: WordNet® (An amazing lexical database of English)
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