obsecrationEnglishOxford New American Dictionaryobsecration /ˌäbsəˈkrāSHən, ˌɑbsəˈkreɪʃən / ▸ noun rare earnest pleading or supplication. – ORIGIN late Middle English : from Latin obsecratio(n-), from obsecrare ‘entreat’, based on sacer, sacr- ‘sacred’.