From Wikimon

Grotmon is the current official romanization.KrytenKoro06 00:02, 22 November 2012 (CST)

It´s Grottemon. --Digni (talk) 08:02, 16 November 2013 (CST)

Yes. We know. We ignore quite a few of DRB's ass-retarded spellings if you couldn't tell.--devkyu (talk) 15:40, 16 November 2013 (CST)
Digni, that message was left when Grotmon was the official romanization. Also, "grotte" is French for "grotto". Anime... PAWĀ!!! 00:30, November 17, 2013 (UTC)/22:30, November 16, 2013 (Brasília, summer time)