simple past tense and past participle of dog
stubbornly unyielding
"dogged persistence"
"dour determination"
"the most vocal and pertinacious of all the critics"
"a mind not gifted to discover truth but tenacious to hold it"
"men tenacious of opinion"
stubbornly persevering, steadfast
very
The word comes from the verb to dog, meaning to follow closely or persistently pursue someone. It originally described a hound that would not give up chasing its prey.