But the Hasidic communities that doggedly stick to a living, breathing Yiddish use different dialects.
That mental image you have of Churchill doggedly shouting down appeasers?
It was Romney who doggedly stuck to his game plan—no matter how preposterous he looked.
"having the qualities of a dog" (mostly in a negative sense), c.1300, from dog (n.). Meaning "persistent" is from 1779. Hence doggedly (late 14c.), "cruelly, maliciously;" later "with a dog's persistence" (1773). Related: Doggedness.