English
lockability
From lock + -ability.
Formed from lock + -ability
Proto-Indo-European *lewg- ‘to bend’
Proto-Germanic *luką
Proto-West Germanic *lok ‘shutter’
Old English loc
Middle English lok
English lock
Today it means
noun The state or quality of being lockable.
Language periods are conventional ranges, not dates for this word.
Etymograph / lockability