From Wiktionary, the free dictionary
erodent (plural erodents)
- Something that erodes.
1912, Clark Ashton Smith, “Ode to the Abyss”, in The star-treader and other poems, A. M. Robertson, page 18:Worlds granite-spined / To thine erodents yield
ērōdent
- third-person plural future active indicative of ērōdō