There are 2 main definitions of -ly in English:

-ly1

Syllabification: -ly

suffix

1Having the qualities of: brotherly rascally

Origin

Old English -līc, of Germanic origin; related to like1.

Definition of -ly in:

There are 2 main definitions of -ly in English:

-ly2

Syllabification: -ly

suffix

Forming adverbs from adjectives, chiefly denoting manner or degree: greatly happily pointedly

Origin

Old English -līce, of Germanic origin.

Definition of -ly in: