aleatory [ ey-lee- uh-tawr-ee, -tohr-ee, al-ee-] WORD ORIGIN adjective . Law depending on a contingent event: an aleatory contract. of or relating to accidental causes; of luck or chance; unpredictable: an aleatory element. . Music employing the element of chance in the choice of tones, rests, durations, rhythms, dynamics, etc.
a·le·a·tor·ic [ey-lee- uh- tawr-ik, - tor-, al-ee-] /ˌeɪ li əˈtɔr ɪk, -ˈtɒr-, ˌæl i-/
Origin of aleatory 1685–95;
) game of chance +
adj. suffix; see
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for aleatoric aleatory aleatoric ( ˌeɪlɪəˈtɒrɪk) adjective dependent on chance (esp of a musical composition) involving elements chosen at random by the performer Word Origin for aleatory
C17: from Latin
āleātōrius, from āleātor gambler, from ālea game of chance, dice, of uncertain origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for aleatoric adj.
"of uncertain outcome," literally "depending on the throw of a die," 1690s, from Latin
aleatorius "pertaining to a gamester," from aleator "a dice player," from alea "a game with dice; chance, hazard, risk; a die, the dice;" perhaps literally "a joint-bone, a pivot-bone," and related to axis.
Online Etymology Dictionary, © 2010 Douglas Harper