the.com/blasphemy

means Speech or action that treats something held sacred as if it were contemptible, trivial, or fair game for mockery.

from From Greek 'blasphemia' — 'blasphemos' meaning slanderous or evil-speaking, built from roots pointing to harmful speech, possibly tied to 'blaptein' (to injure) fused with a word for speech or fame. It passed through Latin 'blasphemia' into Church usage, where it narrowed to mean injury done by word against God or the holy. The sense has always been about damage caused by a tongue, not an idea — which is why what counts as blasphemy shifts with whatever a culture has decided is too sacred to touch.