doomer

doomer · noun¹

1. Old English · inherited fromdōmere“judge”
2. Middle English · inherited fromdomere
3. English todaydoomer

From Middle English domere, from Old English dōmere (“judge”), equivalent to doom + -er. The more recent sense was popularized via a meme, “30 Year-Old Boomer” (first posted in April 2018), the derivations of which are other words that end in -oomer, describing various personality types.

Doomer · noun²

From Doom + -er.

DOOMer · noun³

From DOOM + -er.