Eight Definition

āt

noun

The cardinal number between seven and nine; 8; VIII.

Webster's New World

Any group of eight people or things, as a crew of eight oarsmen.

Webster's New World

The eighth in a set or sequence.

American Heritage

Something numbered eight or having eight units, as a playing card, throw of dice, etc.

Webster's New World

An engine with eight cylinders or an automobile with such an engine.

Webster's New World

Synonyms:

adjective

Totaling one more than seven.

Webster's New World

Synonyms:

Other Word Forms of Eight

Singular:

eight

Plural:

From Middle English eight, aught, eahte, ahte, from Old English eahta (“eight”), from Proto-Germanic *ahtōu (“eight”), from Proto-Indo-European *oḱtṓw. Cognate with Scots aucht (“eight”), West Frisian acht (“eight”), Dutch acht (“eight”), Low German acht (“eight”), German acht (“eight”), Swedish åtta (“eight”), Icelandic átta (“eight”), Latin octo (“eight”), Ancient Greek ὀκτώ (oktō), Irish ocht (“eight”).

From Wiktionary
Middle English eighte from Old English eahta oktō(u) in Indo-European roots

From American Heritage Dictionary of the English Language, 5th Edition
See ait.

From Wiktionary