Open English Wordnet
Nouns
(n)derivationthe source or origin from which something derives (i.e. comes or issues)“he prefers shoes of Italian derivation”, “music of Turkish derivation”
(n)deriving, derivation, etymologizing(historical linguistics) an explanation of the historical origins of a word or phrase
(n)derivationa line of reasoning that shows how a conclusion follows logically from accepted propositions
(n)derivation(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”
(n)ancestry, lineage, derivation, filiationinherited properties shared with others of your bloodline