Some adjectives that end with Ly are also adverbs, but not all.
- heavenly
- miserly
- beastly
- costly
- cowardly
- deadly
- friendly
- likely
- brotherly
- kingly
- leisurely
- lovely
- lively
- womanly
- princely
- scholarly
- silly
- ugly
- unlikely
- bodily
- burly
- chilly
- comely
- courtly
- dastardly
- measly
- jolly
- oily
- otherworldly
- shapely
- sly
- unlikely
- wily
- wooly
- wordly
see http://srufaculty.sru.edu/david.dailey/words/lys.html
