[1715–25; perspirat(ion) + -ory1]This word is first recorded in the period 1715–25. Other words that entered Englishat around the same time include: blackleg, federation, hallmark, leverage, screening-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