verb

• (transitive) To reach (a conclusion) by applying rules of logic or other forms of reasoning to given premises or known facts.
• (transitive) To examine, explain, or record (something) in an orderly manner.
• (transitive, archaic) To obtain (something) from some source; to derive.
• (intransitive, archaic) To be derived or obtained from some source.
• (transitive, obsolete) To take away (something); to deduct, to subtract (something).
• (transitive, obsolete, based on the word’s Latin etymon) To lead (something) forth.