In one of the commentary tracks for Hellsing Ultimate OVA, English dub director Tallison Jaffe boasts using a few rare words now and then, so the fans have something to look for in their dictionaries. I couldn't find the word he was talking about, and in the context in doesn't really make much sense to me.
—Growing old seems so awful.
—Nonsense. Cromogenism is a traditional pleasure for English gentlemen.
The context implies this word is related to aging.