parasitic -t
Definition - A -t that attaches itself to the end of a word during the course of the word's etymological evolution. For example:
(1) The word amidst initially derived from Amidde, which became amyddes in the 13th century, and then acquired a parasitic -t by the 1560s.
(2) The word amongst derives from amonges, with the parasitic -t first attested to in the 16th century.

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