empirema
/ɛmˈpaɪrɪmə/ (em-PAIR-ih-muh)
Definitions
1. noun
a person who is overzealous or obsessive in their pursuit of something
“He’s become an empirema of collecting antique clocks, filling his entire house with them.”
2. noun
a person who excessively or compulsively accumulates something, especially possessions or information
“After years of collecting, he’s turned into an empirema of useless trinkets.”