Credit to Toby Fox

alexscoolblog:

For creating a character whose name is both a combination of his mother and father’s name, and an anagram for SERIAL MURDERER (which he later becomes) AT THE SAME TIME.

Also a reference to the Archangel of Death, Azrael.

(Plus both parents have names that stand up well in their own right. Toriel sounds like tutorial, which is kinda what she is, and Asgore sounds appropriately menacing and medievally regal while Dreemur sounds fluffy, friendly, and idealistic.)