The noun extent is from the same root as the verb to extend (to reach, or to reach out). The extent of a reference is how far it extends, is extended, or is extending.
a verb form is dignify
"Stroked" is not an adverb. It is a past tense verb form of the word "stroke." An adverb typically modifies a verb, adjective, or another adverb to provide more information about how, when, where, or to what extent an action is done.
The verb form of the word hard is harden.
The word measure is a noun, a singular common noun; a word for the extent, quantity, amount, or degree of something, a thing. The word measure is also a verb (measure, measures, measuring, measured); the noun form for the verb to measure is measurer, one who measures. Another noun form of measure is measurement.
The verb form is evolve (evolves, evolving, evolved).
Conclude is the verb form; conclude, concludes, concluding, concluded. The noun form of the word is conclusion.
The verb form of the word "nation" is "nationalize."
The word "rain" is a verb in its base form.
to modernize
The verb form of the word "inquiry" is "inquire."
The verb form is enthuse.
The word synchronized is a verb. It is the past tense form of the verb synchronize.