Interestingly means in a way worth noticing, said before a point. Interestingly, the figures show, more interestingly, interestingly enough.
It is a signpost rather than a description, and it tells the reader that what follows is the surprising part. Used at the start of a sentence it comments on the whole of it, which is what makes it useful.
1adverbinterestinglyIn a way worth noticing, said before a point.
“Interestingly, the youngest children in the study scored higher than the older ones.”
interestingly is a manner.
Also accepted in games: notably
From interesting + -ly.
Etymology from Wiktionary, CC BY-SA