mainly

[ meyn-lee ]
/ ˈmeɪn li /

adverb

chiefly; principally; for the most part; in the main; to the greatest extent: Our success was due mainly to your efforts. The audience consisted mainly of students.
Obsolete. greatly; mightily; abundantly.

Origin of mainly

First recorded in 1225–75, mainly is from the Middle English word maynliche, maynly. See main1, -ly
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for mainly

British Dictionary definitions for mainly

mainly

/ (ˈmeɪnlɪ) /

adverb

for the most part; to the greatest extent; principally
obsolete strongly; very much
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for mainly

mainly


adv.

late 13c., "vigorously," from main (adj.) + -ly (2). Meaning "especially" is from c.1400; that of "for the most part" is from 1660s.

Online Etymology Dictionary, © 2010 Douglas Harper