an obscure, affectedly or ostentatiously erudite borrowing from another language, especially Latin or Greek.
Origin of inkhorn term
First recorded in 1535–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for inkhorn term
an affectedly learned and obscure borrowing from another language, esp Greek or Latin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012