Etymology, n.: Some early etymological scholars come up with derivations that were hard for the public to believe. The term "etymology" was formed from the Latin "etus" ("eaten"), the root "mal" ("bad"), and "logy" ("study of"). It meant "the study of things that are hard to swallow."
The word ‘sin’ is derived from the Indo-European root ‘es-,’ meaning ‘to be.’ When I discovered this etymology, I intuitively understood that for a [person] trapped in patriarchy, which is the religion of the entire planet, ‘to be’ in the fullest sense is ‘to sin'. - Mary Daly