[1725–35; vacillate + -ory1]This word is first recorded in the period 1725–35. Other words that entered Englishat around the same time include: amorphous, hairline, pantheism, roulette, vampire-ory an adjective-forming suffix, joined to bases of Latin origin in imitation of borrowedLatin words containing the suffix -tory (and its alternant -sory). Other words that use the affix -ory include: excretory, sensory, statutory