这个问题太具挑战性了，回答不好也要来凑凑热闹。：）
我在一本词汇量超过450000的词典中搜索的结果是：ly结尾的单词***有 7339个。
我没有时间全部打出来，给20来个简单的吧！
ably
absently
actively
airily
badly
bigly
busily
carefully
capably
clearly
cleanly
coldly
cooly
closely
cloudly
deeply
doubtfully
easily
exactly
evenly
fearfully
gladly
highly
ideally
jokingly
keenly
lovely
manly
naughtily
openly
politely
quickly
really
sadly
tiredly
usualy
widely
vividly
youngly
zealously
以上主要是副词，其实－ly结尾的有名词、形容词等等。
比如：philately
friendly