Webster's Revised Unabridged Dictionary · 1913

Hundred

Hundred (hun"dred) , noun

[Old English hundred, Anglo-Saxon hundred a territorial division; hund hundred + a word akin to Gothic ga-raþjan to count, Latin ratio reckoning, account; akin to Old Saxon hunderod, hund, Dutch hondred, German hundert, Old High German also hunt, Icelandic hundrae, Danish hundrede, Swedish hundra, hundrade, Gothic hund, Lithuanian szimtas, Russ. sto, Welsh cant, Ir. cead, Latin centum, Greek "ekato`s, Sanskrit cata. r309. Compare Cent, Century, Hecatomb, Quintal, and Reason.]

1.
The product of ten multiplied by ten, or the number of ten times ten; a collection or sum, consisting of ten times ten units or objects; five score. Also, a symbol representing one hundred units, as 100 or C.
With many hundreds treading on his heels. — Shakespeare

The word hundred, as well as thousand, million, etc., often takes a plural form. We may say hundreds, or many hundreds, meaning individual objects or units, but with an ordinal numeral adjective in constructions like five hundreds, or eight hundreds, it is usually intended to consider each hundred as a separate aggregate; as, ten hundreds are one thousand.

2.
A division of a country in England, supposed to have originally contained a hundred families, or freemen.
Collocations (1)
Hundred court , a court held for all the inhabitants of a hundred. [English] — Blackstone

Hundred , adjective

Ten times ten; five score; as, a hundred dollars.