English
randomness
From random + -ness.
A compound of random + -ness
Old French randir ‘to run, gallop’
Old French randon ‘rapidity’
Middle English randoun ‘force, haste’
English randon
English random
Today it means
noun The property of all possible outcomes being equally likely.
Language periods are conventional ranges, not dates for this word.
Etymograph / randomness