Definition of "synonime"

Now look out in the GRADUS for Purus, and you find as the first synonime, lacteus, for coloratus, and the first synonime is purpureus.

1817, S[amuel] T[aylor] Coleridge, Biographia Literaria; or Biographical Sketches of My Literary Life and Opinions, volumes (please specify |volume=I or II), London: Rest Fenner […]

How would certain topics, as aldermanity, cuckoldry, have sounded to a Terentian auditory, though Terence himself had been alive to translate them? Senator urbanus, with Curruca to boot for a synonime, would but faintly have done the business.

1833, Elia [pseudonym; Charles Lamb], “[Popular Fallacies.] VIII. That Verbal Allusions Are Not Wit, Because They Will Not Bear a Translation.”, in The Last Essays of Elia. […], London: Edward Moxon, […], page 239