espousal
UK: ɪˈspaʊzl | US: ɪˈspaʊzl
n. the act of adopting or supporting a cause, belief, or way of life
n. (archaic) a marriage ceremony or the state of being married
The word espousal traces back to the Latin sponsus (betrothed), reflecting the idea of a solemn pledge. Over time, it evolved in Old French as espouser (to marry), later entering English with the broader sense of "adopting a cause" (16th century). The suffix -al formalizes the act, whether marital or ideological. The logic hinges on spous- as a bond, extended metaphorically to commitments beyond marriage.
Her espousal of environmental activism inspired many.
The king celebrated his daughter’s espousal with a grand feast.
Critics questioned his sudden espousal of political reform.
The treaty marked the espousal of peace between the nations.
In medieval times, espousal was often a strategic alliance.