(a) To become greater in size, amount, number, or intensity; increase, grow, spread; increase (for sb.) [quot.: a1425]; (b) to thrive, prosper, flourish.

(a) To cause (sth.) to increase, augment; (b) ~ wordes (resounes, argumentes), to use many words, etc.; ~ yiftes (tokenes, ensaumples), give many gifts, etc.; ~ preieres (benes), say many prayers; ~ silence, ?keep silence [cp. ~ wordes]; ~ to speken, ?continue to speak; ~ ivel upon ivel, ?add evil to evil, go from bad to worse; ~ voice, amplify the voice; (c) to cause (sb. or sth.) to thrive or prosper, bless; increase the offspring of (sb.).

(a) To have (children), produce (offspring, posterity); of plants or animals: reproduce (the species); bear (fruit);-- also without obj.; also fig.; ben multiplied, have children; (b) to populate (the world, a country).

Math. To multiply (numbers); -- also without obj.; nombre multipliing, the multiplier; nombre multiplied, the multiplicand.

(a) To transmute base materials into precious metals; (b) to cause gold or silver to increase.

Med. ben multiplied, of physiological factors causing disease: to be combined, be complicated.