The Collaborative International Dictionary
Sponsal
Sponsal \Spon"sal\ (sp[o^]n"sal), a. [L. sponsalis, fr. sponsus a betrothal, fr. spondere, sponsum, to betroth. See Spouse, and cf. Espousal, Spousal.] Relating to marriage, or to a spouse; spousal.
Wiktionary
sponsal
a. (context obsolete English) Relating to marriage, or to a spouse; spousal.