Noun
grandpa [pl. grandpas]
grandfather [pl. grandfathers] , {s}
father [pl. fathers]
grandparent [pl. grandparents] , {relations}
ancestor [pl. ancestors] , {s}
seriousness [pl. seriousnesses]
forefather [pl. forefathers] , {s}
diligence [pl. diligences] , {feelings & emotions}
predecessor [pl. predecessors]
forebear [pl. forebears] , {s}
progenitor [pl. progenitors] , {s}
assiduity [pl. assiduities]
Verb
to strive {pol.}
جَدَّ {في}، {سياسة}
to hurry
to grave [ graved / grove ; graved / graven ]
to work hard {too}
to speed