ජයවර්ධනපුර (Sinhalese) comes from Sanskrit जय, from Sanskrit कर्ता, from Sanskrit कर्तृ, from Sanskrit कृ, from Proto-Indo-European kʷer- — to do; to make; to build.
Ancestry of “ජයවර්ධනපුර”, step by step
ජයවර්ධනපුර traces back through 3 separate lines of ancestry.