English
kneesies
From knee + -sies.
Formed from knee + -sies
Proto-Indo-European *ǵónu
…
Proto-Germanic *knewą
Proto-West Germanic *kneu
Old English cnēo
Middle English kne ‘the knee’
English knee
Today it means
noun flirtatious touching using the knee(s)
Language periods are conventional ranges, not dates for this word.
Etymograph / kneesies