The spelling of "doth well" can be confusing for those unfamiliar with archaic English. The word "doth" is the third person singular present tense form of "do," which means "to perform an action." The "-th" at the end of "doth" indicates that it is of the same tense as "hath" and "maketh." The word "well" is pronounced /wɛl/ and means "in a good or satisfactory manner." Therefore, "doth well" means "performing an action satisfactorily."
The phrase "doth well" is a combination of the verb "doth" and the adverb "well".
"Doth" is the third-person singular present tense form of the verb "do", which means to perform an action or carry out a task. "Doth" is an archaic or poetic form of the verb used primarily in older English texts, particularly during the Middle English and Early Modern English periods.
The word "well" originates from the Old English word "wel" and can be traced back to the Proto-Germanic word "welō". It has remained relatively unchanged in its meaning over time and represents a state of being or doing something capably, correctly, or with skill.
When combined, "doth well" suggests that someone is executing an action or handling a situation proficiently or successfully.