-er — An Etymological Dictionary of Astronomy and Astrophysics

-er

-گر، -گار، -کار، -آر، -نده

-gar (#), -gâr (#), -kâr (#), -âr (#), -andé (#)

Fr.: -eur

A suffix serving as the regular English formative of agent nouns, being attached to verbs of any origin.

Etymology (EN): M.E. -er(e), corresponding to L. → -or,
O.E. -ere; cf. Ger. -er, Sw. -are, Dan. -ere.

Etymology (PE): → -or.

An Etymological Dictionary of Astronomy and Astrophysics