fallow

Definitions:

Ploughed and left unsown; untilled; unemployed.
- The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894. (adjective) (adj.) (adjective)
Fallowness.
- The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894. (noun) (n.) (noun)
Pale red or pale yellow; untilled; left to rest after tillage; not tilled; left unsowed after ploughing; uncultivated; unoccupied; neglected.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (adjective) (adj.) (adjective)
Land that has lain a year or more untilled or unseeded; land ploughed without being sowed; the ploughing or tilling of land, without sowing it, for a season; as, summer fallow, properly conducted, has ever been found a sure method of destroying weeds; " By a complete summer fallow, land is rendered tender and mellow."- Sir J. Sinclair.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (noun) (n.) (noun)
Land plowed but left unseeded.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (noun) (n.) (noun)
Pale red or pale yellow; as, a fallow deer; left to rest after tillage; untilled; uncultivated; neglected; " Break up your fallow ground."- Jer. iv. 3; " Her predecessors did but sometimes cast up the ground; and so leaving it fallow, it became quickly overgrown with weeds."- Howell; unoccupied; neglected; unused.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (adjective) (adj.) (adjective)
To plough, harrow, and break land without seeding it. A green fallow, fallow where land is rendered mellow and clean from weeds by some green crop, as turnips, & c.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (verb) (v.) (verb)
To plough, harrow, and break land without seeding it, for the purpose of destroying weeds and insects and rendering it mellow; as, it is found to be for the interest of the farmer to fallow cold, strong, clayey land. In U. S. to summer- fallow land is to plough and cultivate it continually during the summer, in preparation for sowing wheat in the autumn. Some of the most progressive American farmers condemn summer- fallowing. They contend that, owing to evaporation under the summer heat, the practice is eventually detrimental to the soil.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (verb) (v. t.) (verb transitive)
Land left unsown.
- The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894. (noun) (n.) (noun)
To plough up land without seeding it.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (verb) (v.) (verb)
Plowed but not sown for the season; untilled; of a pale yellow or reddish- yellow color.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (adjective) (adj.) (adjective)
Applied to land which has lain a year or more untilled; land ploughed but not seeded for the season; neglected.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (adjective) (adj.) (adjective)
To keep untilled.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (verb) (v. t.) (verb transitive)
Land that has lain a year or more untilled or unseeded; the ploughing or tilling of land, without sowing it, for a season.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (noun) (n.) (noun)
A green fallow, in England, fallow where land is rendered mellow and clean from weeds by means of some green crop, as turnips, potatoes, etc.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (adjective) (adj.) (adjective)
Applied to one of the deer kind of a brownish bay colour.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (adjective) (adj.) (adjective)
To fade; to become yellow.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (verb, noun) (v. & n.) (verb, noun)

Usage examples:

Once a herd of fallow deer browsing by the wayside scuttled away at the noisy approach of the brakes.
- The Fortunate Youth by William J. Locke
On the other side of the valley I could see a pair of horses nod slowly across the fallow
- The White Peacock by D. H. (David Herbert) Lawrence
There can be little doobt they hae gotten a grip o' 'm at last, puir fallow
- Malcolm by George MacDonald