Sponsion

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The act of becoming surety for another. countable, uncountable
  2. 2
    An act or engagement on behalf of a state, by an agent not specially authorized for the purpose, or by one who exceeds the limits of authority. countable, uncountable

Etymology

From Latin spōnsiō, from spondēre (“to promise solemnly”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.