Regarded as sacred and inviolable.
[Latin sacrōsānctus, consecrated with religious ceremonies : sacrō, ablative of sacrum, religious rite (from neuter of sacer, sacred; see SACRED) + sānctus, past participle of sancīre, to consecrate; see sak- in the Appendix of Indo-European roots.]
sac′ro·sancti·ty (-săngktĭ-tē) n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.