decrepid

Etymology
with alteration of the suffix by analogy with (from ).

Usage notes

 * Decrepid was a common alternative spelling of until the 1820s, gradually declining in usage as spelling became standardized, until by the 1920s it was 40 times rarer than decrepit. Some orthographic works were advising against decrepid, calling it a misspelling, by the mid to late 19th century.