adjective number
four. Nominative/accusative masculine cattaro, caturo; neuter cattari; feminine catasso (and caturo); instrumental masculine, neuter catūhi, catuhi (and catubbhi); feminine catūhi, catuhi; genitive/dative masculine, neuter catunnaṁ; feminine catunnaṁ; locative masculine/neuter/feminine catūsu, catusu