tuum

Tuum is a Latin word functioning as a possessive adjective and, when neuter, as a substantive pronoun meaning “yours.” It is the neuter singular form of the possessive adjective tuus and, like the other forms tuus, tua, tuum, agrees with the noun it modifies in gender, number, and case. Tuum can appear attributively before a noun (liber tuus, “your book”) or predicatively as a substantive pronoun (Hoc tuum est, “This is yours”).

Usage and meaning: The word denotes ownership by the second person singular. It can indicate possession in phrases like “Librum tuum video” (“I see your book”). It can also function as a standalone pronoun in a predicative clause, as in “Hoc est tuum” (“This is yours”). The form changes to agree with the noun it accompanies or stands for, following the patterns of Latin adjectives.

Declension: Tuus, tua, tuum decline like a regular second-declension adjective. In the singular, masculine nominative is tuus (Liber tuus, your book); feminine nominative is tua (Puella tua, your girl); neuter nominative/accusative is tuum (Consilium tuum, your plan). The same endings apply to other cases and to plural forms, mirroring the patterns of other adjectives of the second declension.