Is tamil derived from Sanskrit

[Sudhaama]

Can anyone explain me the roots of the word Oor(place). I find many North Indian places named as Oor like Jaipur. Does this mean the Tamils were there in North India originally?

The Tamil-word..OOR ...rather the common-word for all the Dravidian- Languages...

...is different from the North-Indian ..PUR... and not emanated from Tamil.

Originally these names of the Places were of Sanskrit... as NAGAPURI, KARNAPURI, JAYAPURI, SIRAPURI, NAYANAPURI and the like.

Suibsequently when a new Language HINDI emanated as the Offshoot of Sanskrit...

... along with the admixture of alien Languages like Arab, Hebrew, Persian, Portugese etc....

...Nagapuri became NAGPUR.. .Karnapuri- KANPUR... Jayapuri-JAIPUR... Sirapuri-SIRPUR... Nayanapuri-NAINPUR and the like.. in Hindi pronunciation..

'PURI' in Sanskrit means OOR in Tamil.

But on your another Question... my Answer is...

Yes. Tamils rather Tamilians named DRAVIDIANS... were from North-Indian regions only... as the PRIME-HUMAN Generation on Earth..

... who expanded their Kingdom to South-India ..occupying different Sub-regions within

You can note... during Mahabharatha and Ramayana periods... the whole of South India was of dense fertile forests....

...with NO MANKIND at all ..Not even Tribals or Savages...except Monkeys as the Rulers.

At such times of pre-Historic days... Tamilians were inhabited spread over in North India.

Because they were MIGRATORY by natural attitude...being DYNAMIC AND ACTIVE constantly towards Advancement in Life...

...they were named by the then Sanskrit-patroniser- Kings.. as DRAVIDA in Sanskrit...meaning WAGABOND....

DRU = Move... as in Dravyam = Money , since it moves from hand to hand.

We can find several Tamil-words in Hindi, Bengali, Marathi etc, no doubt.... but not this word...OOR..