What is "paragogic"

Paragogic \Par`a*gog"ic\, Paragogical \Par`a*gog"ic*al\, a. [Cf. F. paragogique.] Of, pertaining to, or constituting, a paragoge; added to the end of, or serving to lengthen, a word.

Paragogic letters, in the Semitic languages, letters which are added to the ordinary forms of words, to express additional emphasis, or some change in the sense.

a. Of, relating to, or constituting, a paragoge; added to the end of, or serving to lengthen, a word.