English
extensibleness
From extensible + -ness.
Formed from extensible + -ness
Proto-Indo-European *téndeti
Proto-Italic *tendō ‘to stretch’
Latin tendō
Latin extendō ‘to extend’
Latin extēnsibilis
English extensible
Today it means
noun The quality of being extensible.
Language periods are conventional ranges, not dates for this word.
Etymograph / extensibleness