From Wiktionary, the free dictionary
Learned borrowing from Sanskrit तामस (tāmasa, “sleep”).
താമസം • (tāmasaṁ)
- living, stay; accommodation
- delay
- lateness
- Gundert, Hermann (1872) “താമസം”, in A Malayalam and English dictionary, Mangalore, London: C. Stolz; Trübner & Co.