- The word is commonly used with a definite article in most parts of central Germany, southern Germany, and Austria: Wo ist der Papi? – "Where is Daddy?" In northern Germany—and generally in writing—no article tends to be used: Wo ist Papi?
- The genitive Papis is used before the modified term, without any article or determiner: Papis Tasche – “Daddy’s bag”. This is chiefly northern German usage; the rest of the language prefers: die Tasche vom Papi (as above). — The genitive can also be used with an accompanying article or determiner: die Tasche meines Papis – “my dad’s bag”. This, however, is not common usage in any region; children will say instead: die Tasche von meinem Papi.
Declension of Papi
- Papi in Duden online