decoct UK /dɪˈkɒkt/US /dəˈkɑkt/ verb6 •To reduce, or concentrate by boiling down. •(figurative) To reduce or diminish.[…] and that rednesse / may neuere tournë to whiteness / (as clerkës sayn,) but yef so be / it be decoct by charyte, […] — 1904 •To make an infusion. •(figurative) To heat as if by boiling.Can sodden Water, / A Drench for sur-reyn’d Iades, their Barly broth, / Decoct their cold blood to such valiant heat? — 1599 •To digest in the stomach.Here she [the body] attracts, and there she doth retain; / There she decocts, and doth the food prepare; / There she distributes it to ev’ry vein, / There she expels what she may fitly spare. — 1626 •To devise. formsdecocted · decocting · decocts