keyed

[keed]
adjective
1.
fitted with keys.
2.
fastened or secured by a key.
3.
Music. pitched in a specific key.
4.
reinforced by a keystone.
5.
coordinated, as with a basic color or idea; harmonized (sometimes used in combination): color-keyed carpeting.

Origin:
1790–1800; key1 + -ed3

unkeyed, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Etymonline
Word Origin & History

key
"metal piece that works a lock," from O.E. cæg, of unknown origin, with no certain cognates other than O.Fris. kei. Perhaps related to M.L.G. keie "lance, spear" on notion of "tool to cleave with," from P.Gmc. *ki- "to cleaver, split" (cf. Ger. Keil "wedge," Goth. us-kijans "come forth," said of
seed sprouts, keinan "to germinate"). Figurative sense of "that which serves to open or explain" was in O.E.; meaning "that which holds together other parts" is from 1523. Musical sense of "tone, note" is 15c., but modern sense of "scale" is 1590, probably from L. clavis or Fr. clef, from use in the Guidonian system for lowest note of a scale, which is its basis (cf. keynote). Also extended to "mechanism on a musical instrument" (c.1500).

key
"low island," 1697, from Sp. cayo "shoal, reef," from Taino cayo "small island;" spelling infl. by M.E. key "wharf" (1306), from O.Fr. kai "sand bank" (see quay).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
key   (kē)  Pronunciation Key 
See cay.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

key definition


The main or central note of a piece of music (or part of a piece of music). Each key has its own scale, beginning and ending on the note that defines the octave of the next scale. The key of C-major uses a scale that starts on C and uses only the white keys of the piano. In a piece composed in the key of C, the music is likely to end on the note C, and certain combinations of notes based on C will predominate.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences for Unkeyed
A white cell that is part of only one entry is called unchecked, unkeyed or uncrossed.
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