How to Spell Rejector?

I would presume that today we find "rejector" more reasonable because of words like "erector" and "ejector." But "rejecter" was clearly the preferred form in the 19th century. But both terms seem to be swapping popularity with each other, in British and American English.

Is there a word Rejector?

To refuse to accept (someone) as a lover, spouse, or friend; rebuff.

What is a poor Rejector?

something rejected as imperfect, unsatisfactory, or useless. [C15: from Latin rēicere to throw back, from re- + jacere to hurl]