English
kissingly
From kissing + -ly.
Formed from kissing + -ly
Proto-Germanic *kussijandz
Proto-West Germanic *kussijandī
Old English cyssende
Middle English kissynge ‘kiss’
English kissing
Today it means
adv So as to kiss, or make contact as if kissing.
Language periods are conventional ranges, not dates for this word.
Etymograph / kissingly