obsecration
/ˌɒbsɪˈkreɪʃ(ə)n
/noun [mass noun] rare
Earnest pleading or supplication.Well, perhaps not, for it can better be read as the futile obsecration of one pro-Roman faction, losing out to their retro-Celtic foes....
- ‘Ladies and gentlemen of the jury,’ he began in obsecration.
- An obsecration was, and is, part of all ancient and modern oaths.
Origin
Late Middle English: from Latin obsecratio(n-), from obsecrare 'entreat', based on sacer, sacr- 'sacred'.