Quote:
Originally Posted by Paul_RK
...There doesn't seem to be any general reason for the -er/-or variations, even among components "transformor" seems not to exist (yet)....
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That's a really good one, which escaped me - yet "capacitor" and "transistor" and loads of others do.
I did Google 'or and er' and some guidelines exist, such as single- or multi-syllable originating verb; does it end in multiple consonants; does it end in double-s; though there are exceptions to each general rule.
It's irregular!
And there's also the -ar ending, though that seems confined to people who do things rather than things which do things (beggar, liar, etc).