deduce /dɪˈdus/ verb6 •To reach (a conclusion) by applying rules of logic or other forms of reasoning to given premises or known facts.[T]hose principles or first positions, have no discordance with that reason, which draweth downe and diduceth the inferiour positions. — 1605 •To examine, explain, or record (something) in an orderly manner.Pye[d-mantle]. […] Sir, I haue drawne / A Pedigree for her Grace, though yet a Nouice / In that so noble study. […] I haue deduc'd her.— […] — 1625 •(no longer used) To obtain (something) from some source; to derive.O Goddess, say, shall I deduce my rhimes / From the dire nation in its early times, / Europa’s rape, Agenor’s stern decree, / And Cadmus searching round the spacious sea? — 1699 •(no longer used) To be derived or obtained from some source. •(no longer used) To take away (something); to deduct, to subtract (something). •(no longer used) To lead (something) forth.Richard of the Vies will that Penda, K[ing] of Mereland, first deduced a colony of Cambridge men hither and cals it Crekelade, as other Kirklade with variety of names: […] — 1612 formsdeduc't · deduced · deducedst · deducing · deduces · deduceth · deducest