Webster's Revised Unabridged Dictionary · 1913

Eat

Eat (ēt) , transitive verb

[Old English eten, Anglo-Saxon etan; akin to Old Saxon etan, OFries. eta, Dutch eten, Old High German ezzan, German essen, Icelandic eta, Swedish ata, Danish ade, Gothic itan, Ir. & Gael. ith, Welsh ysu, Latin edere, Greek 'e`dein, Sanskrit ad. r6. Compare Etch, Fret to rub, Edible.]

1.
To chew and swallow as food; to devour; -- said especially of food not liquid; as, to eat bread. [Obsolescent & Colloquial; Obsolete or Colloquial]
To eat grass as oxen. — Dan. iv. 25
They... ate the sacrifices of the dead. — Bible (KJV) - Psalm cvi. 28
The lean... did eat up the first seven fat kine. — Gen. xli. 20
The lion had not eaten the carcass. — 1 Kings xiii. 28
With stories told of many a feat, How fairy Mab the junkets eat. — Milton
The island princes overbold Have eat our substance. — Tennyson
His wretched estate is eaten up with mortgages. — Thackeray
2.
To corrode, as metal, by rust; to consume the flesh, as a cancer; to waste or wear away; to destroy gradually; to cause to disappear.
Collocations (5)
To eat humble pie , See under Humble.
To eat of , (partitive use). Eat of the bread that can not waste. — Keble
To eat one's words , to retract what one has said. (See the Citation under Blurt.)
To eat out , to consume completely. Eat out the heart and comfort of it. — Tillotson
To eat the wind out of a vessel (Nautical) , to gain slowly to windward of her.

Eat , intransitive verb

1.
To take food; to feed; especially, to take solid, in distinction from liquid, food; to board.
He did eat continually at the king's table. — 2 Sam. ix. 13
2.
To taste or relish; as, it eats like tender beef.
3.
To make one's way slowly.
Collocations (2)
To eat or To eat in or To eat into , to make way by corrosion; to gnaw; to consume. A sword laid by, which eats into itself. — Byron
To eat to windward (Nautical) , to keep the course when closehauled with but little steering; -- said of a vessel.