MAKARIA (or Macaria) was the goddess of (blessed) death, a minion of her parents Haides and Persephone.
She may have been a more merciful counterpart of the death-god Thanatos; or was perhaps somehow connected with the passage of souls to the Nesoi Makarioi (Islands of the Blest).
|HAIDES (Suidas 'Makaria')
Suidas s.v. Makariai (trans. Suda On Line) (Byzantine Greek Lexicon C10th A.D.) :
"Makaria (Blessed). Death. A daughter of Haides. And a proverb : `Go to blessedness', instead of go to misery and utter destruction. Or `Go to blessedness' is said by euphemism. Since even the dead are called 'blessed ones."
- Suidas, Lexicon - Byzantine Greek Lexicon C10th A.D.