sacrosanct

 
Pronunciation: /ˈsakrə(ʊ)saŋ(k)t, ˈseɪk-/

adjective

  • (especially of a principle, place, or routine) regarded as too important or valuable to be interfered with: the individual’s right to work has been upheld as sacrosanct

Derivatives

sacrosanctity

Pronunciation: /-ˈsaŋktɪti/
noun

Origin:

late 15th century: from Latin sacrosanctus, from sacro 'by a sacred rite' (ablative of sacrum) + sanctus 'holy'