The Proto-Indo-European word *tóti
Word *tóti
Meaning so much, many
See also Tocharian A: tot ‘so much, that much, so far’

Comments
Mallory J.P. and Adams D. (2006)

Other words that might be of interest
*trei- ‘three’, *dwoi- ‘group of two, two’, *(h₁)néwn̥ ‘nine’, *tréies (m), trisóres (f), treih₂ (n) tri- [prefix] ‘three’, *dwéh₃(u) ‘two’, *h₁newh₁m̥(h₁néwh₁n̥?) ‘nine’, *tréyes ‘three’, *pl̥h₁u-poik/k̂os ‘many-coloured, variegated’, *pélh₁us ‘much’