* <<G4S.1399>> Impalation/impalement
My first instinct was to use "impalation", but the spell-checker told 
me that it was invalid. It *is* valid, but extremely obscure — the 
Google Books ngram viewer indicates that it's had tiny swells of 
usage, but even at its most-used (circa 1939), "impalement" was 
published 50 times more often. 

Anyhow, this got me thinking about which one is more "correct". 
Impalation suggests that the verb is "impalate", not simply impale. I 
can't think of other examples of...

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Excerpted from:

PUBLIC NOTES (G) 
http://alph.laemeur.com/txt/PUBNOTES-G 
©2016 Adam C. Moore (LÆMEUR) <adam@laemeur.com>