Common knowledge is just so not common.check this out .

Do we know actual full form of some words???

News paper = North East West South past and present events report.

Chess = Chariot, Horse, Elephant, Soldiers.

Cold = Chronic Obstructive Lung Disease.

Joke = Joy of Kids Entertainment.

Aim = Ambition in Mind.

Date =Day and Time Evolution.

Eat = Energy and Taste.

Tea =Taste and Energy Admitted.

Pen = Power Enriched in Nib.

Smile = Sweet Memories in Lips Expression.

etc. = End of Thinking Capacity

OK = Objection Killed

Or = Orl Korec (Greek Word)

Bye = Be with you Everytime.

Thank me later.