FIRSTLY OR FIRST? LASTLY OR LAST?
Of late, I have been noticing a tendency to employ "firstly", "secondly" instead of "first, second", as in "Firstly I wish to thank..." instead of "First I wish to thank..." It is not wrong, of course, and the adverb has been in use this way for centuries; even Fowler , however, tended to prefer first, second , etc., rather than firstly, secondly , and expressions such as “last but not least” would sound odd if turned into “lastly but not least. I simply wanted to point this out in case someone like me was wondering.