Etymology
* As a German surname, from the noun Emmer (“grain”). * Also as a German surname, from the adjective eben (“smooth, even”) + the suffix -er. * As a Dutch surname, from the personal name Emmert, from the old Germanic name Emhard, see Emmert. Or, from the name Egmar, from *aggju (“sharp point of a sword”) + *mārī (“famous”). * Also as a Dutch surname, from the noun emmer (“bucket”).
Definitions & examples from Wiktionary (CC BY-SA 3.0).