raw (adj.)

Old English hreaw "uncooked, raw," from Proto-Germanic *khrawaz (source also of Old Norse hrar, Danish raa, Old Saxon hra, Middle Dutch rau, Dutch rauw, Old High German hrawer, German roh), from PIE root *kreue- "raw flesh."

Meaning "tender, sore" is from late 14c.; of persons, "inexperienced" from 1560s; of weather, "damp and chilly" first recorded 1540s. Related: Rawly; rawness. Raw material "unmanufactured material, material for fabrication in its natural state" is from 1796, with raw in a sense of "in a rudimentary condition, unfinished." Phrase in the raw "naked" (1921) is from the raw "exposed flesh," which is attested from 1823. Raw deal "harsh treatment" is attested by 1893.

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Definitions of raw from WordNet
raw (adj.)
used of wood and furniture;
raw wood
Synonyms: unsanded
raw (adj.)
brutally unfair or harsh;
received raw treatment from his friends
a raw deal
raw (adj.)
(used especially of commodities) being unprocessed or manufactured using only simple or minimal processes;
raw wool
raw sugar
Synonyms: natural / rude
raw (adj.)
having the surface exposed and painful;
a raw wound
raw (adj.)
not treated with heat to prepare it for eating;
raw (adj.)
not processed or refined;
raw sewage
raw (adj.)
devoid of elaboration or diminution or concealment; bare and pure;
you may kill someone someday with your raw power
raw fury
Synonyms: naked
raw (adj.)
not processed or subjected to analysis;
the raw cost of production
raw data
Synonyms: crude
raw (adj.)
untempered and unrefined;
raw talent
raw beauty
raw (adj.)
Synonyms: sensitive / sore / tender
raw (adj.)
unpleasantly cold and damp;
Synonyms: bleak / cutting
raw (adj.)
lacking training or experience;
raw recruits
Synonyms: new
raw (adj.)
(used informally) completely unclothed;
Synonyms: bare-assed / bare-ass / in the altogether / in the buff / in the raw / peeled / naked as a jaybird / stark naked
raw (n.)
informal terms for nakedness;
in the raw