Going from Italian to Tamil (เฎคเฎฎเฎฟเฎดเฏ) has a composite linguistic distance of 91% (heuristic estimate). Below is the dimension-by-dimension breakdown.
Shared vocabulary, cognates, and loanwords.
Morphology, syntax, word order, cases.
Shared sounds and phoneme inventory.
Latin โ Tamil
Indo-European โ Dravidian
The 5 languages with the lowest linguistic distance from Italian:
A quick 3-question check between Italian and Tamil. No signup.