inkhorn term
Definition - An obscure, ostentatious word usually derived from Latin or Greek.

Example -
floccinaucinihilipilification, the action or habit of estimating as worthless (an inkhorn term used in a 1741 letter by Shenstone).

Etymology -
They were so called because they appeared in writing more often than in speech.

Oxford English Dictionary -
The term's first citation is from 1543:
"Soche are your Ynkehorne termes."
(Bale Yet a Course 59b, )

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