[1765–75; adjut(ant) + -ancy]This word is first recorded in the period 1765–75. Other words that entered Englishat around the same time include: bilateral, civilization, guidance, mocha, statement-ancy is a combination of -ance and -y, used to form nouns denoting state or quality. Other words that use the affix -ancy include: consultancy, malignancy, mendicancy, poignancy, precipitancy