Agent nouns tips
From the tips and notes on agent nouns:
Similar to the English suffix -er, those nouns refer to a person who does that action or an item which does that action.
For example, from mugh (to translate), we get mughwI' "translater" -- either a person who translates or a device which can translate.
You'll want to choose a different word to use as an example, as the correct spelling is translator, and that doesn't have an -er ending.