As a proper noun pappy
is (informal) one's grandfather.
As an adjective peppy is
full of pep; energetic, cheerful, and vigorous; bouncy.
pappy
English
Etymology 1
Adjective
(er)
Like pap; soft; mushy.
Etymology 2
Noun
(pappies)
(colloquial, regional) father
(colloquial, regional) grandfather
Derived terms
* grandpappy
peppy
English
Adjective
(er)
Full of pep; energetic, cheerful, and vigorous; bouncy
:Cedric was not feeling peppy when he woke up two hours before dawn.
Synonyms
* energetic, lively, perky, sparky, zippy
* full of pep, full of vim and vigor
Antonyms
* enervated, exhausted, lethargic, solemn