Quick Latin question

[Carlton Bach]

I'm having a stupid, and my Stowasser isn't helping me:

Does natalis in 'dies natalis' inflect like an adjective, or does it work like an independent genitive? Would the accusative be

diem natalem

or

diem natalis

Thanks

[hansvl]

Hi Volker,

Natalis as a noun means birthday already, so wouldn't natalis as a genitive be superfluous combined with dies?

In my opinion it's an adjective. So I would go for diem natalem.

Greets,

Hans

[griffin]

I agree with Hans.

Every time I've wished someone happy birthday in Latin, I've always used: felicem diem natalem!

Cheers,

[Carlton Bach]

Thanks!

Hallmark should really get going on proper off-the-shelf Latin cards.