espousal (n.)

• acceptance
• adoption
• advocacy
• affiliation
• aid
• approval
• banns
• betrothal
• bridal
• elopement
• embracement
• embracing
• engagement
• epithalamium
• honeymoon
• hymen
• hymeneal
• marriage
• mating
• nuptials
• promotion
• prothalamium
• spousal
• support
• troth
• union
• wedding