Entry 2 senses · 2 variants Webster, 1913

Mainly

/mān'-lē/ · Main·ly · IPA /ˈmeɪnli/

01 adv. Very strongly; mightily; to a great degree.

1.
Very strongly; mightily; to a great degree.[Obs.]

02 adv. Principally; chiefly.

1.
Principally; chiefly.