from Latin repandus bent backwards, turned up, from re- re- + pandus bent
From: Pseudodoxia Epidemica:
Or Enquiries Into Very Many Received Tenents and Commonly Presumed Truths
By Thomas Brown
The Fourth Edition, 1658
The Fifth Book.
Of many things questionable as they are commonly described in Pictures.
Chap. II. Of The Picture of Dolphins.