That which belongs to you (singular); the possessive second-person singular pronoun used without a following noun.
"In his heartfelt prayer, the worshiper bowed low and whispered that all glory belonged entirely to Yours."
Honorific alternative letter-case form of yours, sometimes used when referring to God or another important figure who is understood from context.
Yours entered English from Middle English around the 1300s as a possessive form created by adding an -s suffix to "your." This construction replaced the older word "yourn" and was modeled after the similar formation of "his.