Where does “திருச்சூர்” come from?

திருச்சூர் (Tamil) comes from Malayalam തൃശൂർ, from Malayalam തൃശ്ശിവപേരൂർ, from Malayalam തിരു, from Old Tamil 𑀢𑀺𑀭𑀼, from Sanskrit श्री, from Sanskrit नगर, from Sanskrit गर, from Sanskrit गुरु — Forms adjectives from Caland system roots.

Ancestry of “திருச்சூர்”, step by step

StepLanguageWordMeaning
1Malayalamതൃശൂർ—
2Malayalamതൃശ്ശിവപേരൂർ—
3Malayalamതിരുmister
4Old Tamil𑀢𑀺𑀭𑀼mister
5Sanskritश्रीdiffusing light or radiance, splendid, radiant,...
6Sanskritनगरtown, city; urban
7Sanskritगरmountain, top
8Sanskritगुरुheavy; weighty
9Proto-Indo-Aryangr̥Húṣ—
10Proto-Indo-Iraniangr̥Húšheavy
11Proto-Indo-Europeangʷréh₂usheavy
12Proto-Indo-European-usForms adjectives from Caland system roots
Every word from Proto-Indo-European -us →Every word from Proto-Indo-European gʷréh₂us →Every word from Proto-Indo-Iranian gr̥Húš →