rare. [f. COINCIDE + -ER.] One who or that which coincides. (Harris used it as = one who goes in company.)
1750. Harris, Hermes, I. ix. Wks. (1841), 169, note. From its [the verbs] readiness συμβαίνειν, to coincide with its noun in completing the sentence, they called it σύμβαμα, a coincider. Ibid. Something less than a coincider, or less than a predicable.