derivation

noun

• 1the action of obtaining something from a source or origin:the derivation of scientific laws from observation
• the formation of a word from another word or from a root in the same or another language.
• origin; extraction:music of primarily Turkish derivation
• [count noun] something derived; a derivative: a good dictionary includes derivations

• 2 Linguistics the set of stages that link a sentence in a natural language to its underlying logical form.

• 3 Mathematics the process of deducing a new formula, theorem, etc., from previously accepted statements.
• [count noun] a sequence of statements showing that a formula, theorem, etc., is a consequence of previously accepted statements.