To swear is to make a promise.(verb)
To swear is to speak using bad or rude language.(verb)
An example of to swear is exclaim “shit” when something bad happens.
See swear in Webster's New World College Dictionary
Origin: ME swerien < OE swerian, akin to Ger schwören < IE base *swer-, to speak > OSlav svariti, to revile
See swear in American Heritage Dictionary 4
verb swore swore (swôr, swōr), sworn sworn (swôrn, swōrn), swear·ing, swears verb, intransitive
Origin: Middle English sweren
Origin: , from Old English swerian; see swer- in Indo-European roots.
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