Crossword Dictionary

oddly 

curiously, oddly, peculiarly - r 
in a manner differing from the usual or expected; "had a curiously husky voice"; "he's behaving rather peculiarly" 

wordplays

synonyms 

strangely, weirdly, peculiarly, unusually, extraordinarily, funnily, uncommonly, abnormally, queerly, atypically, irregularly, anomalously, untypically, radically

in a sentence 

the house's oddly shaped roof 

Their lives had been oddly similar.

One of the others sharing that rank, oddly enough, was 2004′s Hurricane Charley.

Courtship rituals are personal, oddly specific, and constantly changing.

Could this case study — oddly specific yet generic — ever be anything but bizarre?

merriam-webster

etymology 

late 14c., "remarkably, exquisitely, extremely, very; completely," from odd + -ly (2). Meaning "strangely, in an odd manner" is from c. 1600.

etymonline