Other forms: shaking, shook, shaken, shakes, shaked
To shake is to move something quickly back and forth. Shake the bottle, shake hands, her hands were shaking. It is irregular: shake, shook, shaken.
The two everyday collocations are worth learning whole: shake hands, and shake your head, which means no in most of Europe and North America and does not mean that everywhere. Shaken as an adjective means upset by a shock — she was badly shaken — and is a standard word in news reporting. Note the phrasal verbs: shake off an illness or a pursuer, shake up an organisation, and the noun shake-up, meaning a big reorganisation.
1verbshakeTo move something quickly back and forth.
“Shake the bottle before you pour it.”
2verbtrembleTo tremble, from cold, fear or illness.
“His hands were shaking too much to hold the cup.”
3verbupsetTo upset somebody badly.
“The whole thing shook her more than she admitted.”
4nounactAn act of shaking.
“Give it a good shake and try again.”
Too few real examples of this word to estimate which sense is commonest.
shake is a back-and-forth movement.
Old English sceacan meant to shake or to move quickly, and the same root gave a sense of escaping — which survives in shake off. Shaking something and getting away from it were one word before they were two.
Middle English
schaken
English, today
shake
Built from
From Middle English schaken. From Middle English schaken, from Old English sċeacan, sċacan (“to shake”), from Proto-West Germanic skakan, from Proto-Germanic skakaną (“to shake, swing, escape”), from Proto-Indo-European (s)keg-, (s)kek- (“to jump, move”). Cognate with Scots schake, schack (“to shake”), West Frisian schaekje (“to shake”), Dutch schaken (“to elope, make clean, shake”), Low German schaken (“to move, shift, push, shake”) and schacken (“to shake, shock”), Old Norse skaka (“to shake”), Norwegian Nynorsk skaka (“to shake”), Swedish skaka (“to shake”), Danish skage (“to shake”), Dutch schokken (“to shake, shock”), Russian скака́ть (“to jump”). More at shock.
Etymology from Wiktionary, CC BY-SA