From The Collaborative International Dictionary of English v.0.48 :
Disablement \Dis*a"ble*ment\, n.
Deprivation of ability; incapacity. --Bacon.
[1913 Webster]
From WordNet (r) 3.0 (2006) :
disablement
n 1: the condition of being unable to perform as a consequence
of physical or mental unfitness; "reading disability";
"hearing impairment" [syn: disability, disablement,
handicap, impairment]