Webster's Revised Unabridged Dictionary · 1913

Tot

Tot , noun

[Compare Toddle, Tottle, Totter.]

1.
Anything small; -- frequently applied as a term of endearment to a little child.
2.
A drinking cup of small size, holding about half a pint. [Provincial English] — Halliwell
3.
A foolish fellow. [Provincial English] — Halliwell

Tot , noun

[Latin]

Lit., so much; -- a term used in the English exchequer to indicate that a debt was good or collectible for the amount specified, and often written opposite the item.

Tot , transitive verb

1.
To mark with the word “tot”; as, a totted debt. See Tot, n.
2.
To add; to count; to make up the sum of; to total; -- often with up. [Colloquial, English]
The last two tot up the bill. — Thackeray