English
furry number
From furry (“relating to the furry subculture”) + number, referring to the website e621.net.
A compound of furry ‘relating to the furry subculture’ + number
Proto-Indo-European *nem- ‘to distribute; to give, take’
Proto-Italic *nomezos
Latin numerus ‘number’
Anglo-Norman noumbre
Middle English number
English number
The story
The website's name, e621, refers to monosodium glutamate, a chemical used to enhance taste in food, referring to its pornographic content being enjoyable ("tasty") by fans.
Today it means
noun The number 621.
Language periods are conventional ranges, not dates for this word.
Etymograph / furry number