Where does “তৈল” come from?

তৈল (Sanskrit) comes from Sanskrit तैल, from Sanskrit तिल, from Munda mun.

Ancestry of “তৈল”, step by step

StepLanguageWordMeaning
1Sanskritतैलoil; sesamum oil; olibanum
2SanskritतिलSesamum indicum (its blossom is compared to the nose), sesame seed (much used in cookery; supposed to have originated from Vishnu's sweat-drops)
3Mundamun—
Every word from Munda mun →Every word from Sanskrit तिल →Every word from Sanskrit तैल →