#1 derivation n. the source or origin from which something derives (i.e. comes or issues); "he prefers shoes of Italian derivation"; "music of Turkish derivation". wn
#2 derivation n. [deriving, etymologizing] (historical linguistics) an explanation of the historical origins of a word or phrase. wn
#3 derivation n. a line of reasoning that shows how a conclusion follows logically from accepted propositions. wn
#4 derivation n. (descriptive linguistics) the process whereby new words are formed from existing words or bases by affixation; "'singer' from 'sing' or 'undo' from 'do' are examples of derivations". wn
#5 derivation n. [ancestry, lineage, filiation] inherited properties shared with others of your bloodline. wn
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