English
handshake
From hand + shake.
Proto-Indo-European *skek- ‘to jump’
Proto-Germanic *skakaną ‘to shake, swing, escape’
Proto-West Germanic *skakan ‘to shake’
Old English sċacan ‘to pass or depart’
Middle English schaken ‘to rock or agitate’
English shake
Today it means
noun The grasping of hands by two people when greeting, leave-taking, or making an agreement.
Language periods are conventional ranges, not dates for this word.
Etymograph / handshake