secondly
From Longman Dictionary of Contemporary Englishsecondlysec‧ond‧ly /ˈsekəndli/ ●●○ S3 adverb [sentence adverb] AFTERused when you want to give a second point or fact, or give a second reason for something → firstly Firstly, they are not efficient, and secondly, they are expensive to make.Examples from the Corpussecondly• With annoyance calls, first of all, don't carry on a conversation. And secondly, hang up quickly and quietly.• The more you practise the better you will become at selecting historical information to suit firstly your essay and secondly your argument.