• ursabus,
• ursavas,
• ursavuos,
• ursavuz,
• ursavys,
• ersavus,
• ursaves,
• ursavus

• obscure,
• servus,
• reserve,
• purview,
• purse,
• survey,
• surface,
• Ursula,
• Versus,
• persuade,
• peruse,
• assuage.

The adjective form of "ursavus" is "ursavian".

The plural form of "ursavus" is "ursavi".

The singular form of the word "ursavus" is "ursavus". This is because "ursavus" is already the scientific name of a prehistoric mammal, and it does not change when referring to just one individual of the species.