1) In an old-fashioned way 2) Oddly 3) With old-fashioned charm 
• (adv.) In a quaint manner.
Quaint'ly adverb In a quaint manner. Shak. 
[adv] - in a strange but not unpleasant manner 2. [adv] - in a quaint old-fashioned manner
quaintly 1. In a quaint old-fashioned manner. 2. In a strange but not unpleasant manner.
adverb in a quaint old-fashioned manner; `the room was quaintly furnished`