Father Time
Methuselah
Nestor
Old Paar
belsire
centenarian
dotard
elder
gaffer
geezer
golden-ager
goodsire
grampa
gramps
grandad
granddad
grandpa
grandpapa
grandparent
grandsire
graybeard
great-grandfather
nonagenarian
octogenarian
old chap
old codger
old dog
old duffer
old geezer
old gent
old gentleman
old man
old party
old-timer
older
oldster
pantaloon
patriarch
presbyter
senior citizen
septuagenarian
sexagenarian
the quiet-voiced elders
venerable sir
veteran
maternal grandfather
paternal grandfather
grandfathers
ancestor
brother-in-law
colonel
cousin
dad
doctor
duke
earl
emperor
father
grandmother
grandson
lord
master
mistress
nephew
parent
uncle
widow