“Osculate” originates from the Latin verb “osculari” (“to kiss”) and the noun “osculum” (“little mouth or kiss”). While a kiss between the happily married couple is often considered the romantic culmination of a modern wedding ceremony, ancient Romans viewed the practice more practically. Since literacy was not as widespread in this time, and historians speculate a kiss was a symbol of a mutual agreement, this action is likely what inspired the phrase “sealed with a kiss.”