The Collaborative International Dictionary of English v.0.48:
Lastly \Last"ly\, adv. 1. In the last place; in conclusion. [1913 Webster] 2. at last; finally. [1913 Webster]WordNet (r) 3.0 (2006):
lastly adv 1: the item at the end; "last, I'll discuss family values" [syn: last, lastly, in conclusion, finally]