Impeller according to the Concise English Dictionary.
As to Brendan's question about "who cares" - I do and maybe a few others do as well. He can use impellor, impella, impela, impelor or whatever he likes but he will be wrong ... or shud that bee rong?
Morgan
[ QUOTE ]
Impeller according to the Concise English Dictionary.
As to Brendan's question about "who cares" - I do and maybe a few others do as well. He can use impellor, impella, impela, impelor or whatever he likes but he will be wrong ... or shud that bee rong?
Morgan
[/ QUOTE ]
Seconded!
This is one nautical word that has always annoyed me.
We should care. It's our language, and if we fail to take an interest and understanding in it, we will indeed end up tlkin lik dis cos nbdy cn b bovverd 2 no how 2 rite.
I think the general principle is that in a word's early useage history, the -er form directly derives the noun from the verb. So an impeller would be something that impels.
But after a long period of useage the person, equipment, etc takes on an independent entity, and in a sense floats off into common useage detached from its original verb. That seems to be when the -or form becomes established, by analogy with words like donor, vector, doctor, emperor, carburettor, etc..
When an apprentice (early sixties) I believe that the name 'Cutlass' was a brand name of the first bearings of that type, probably intended as a marketing pun.