What does Etymology mean?
1398, from Gk. etymologia, from etymon "true sense" (neut. of etymos "true," related to eteos "true") + logos "word
The study of the origins of words and their meanings.
etymology = the general study (as Anglika said); but it can also refer to a particular root - 'the etymology of a word'.
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en.wikipedia.org/wiki/Etymology
its one of the greatest places that you dont want to get out of it