-ly1
/lɪ/suffix
Forming adjectives meaning:
1Having the qualities of: brotherly rascally
2Recurring at intervals of: hourly quarterly
Origin
Old English -lic, of Germanic origin; related to like1.
-ly2
/lɪ/suffix
Forming adverbs from adjectives, chiefly denoting manner or degree: greatly happily pointedly
Origin
Old English -līce, of Germanic origin.