English
extravagantness
From extravagant + -ness.
Formed from extravagant + -ness
Proto-Indo-European *bʰer- ‘to bear, carry’
…
Latin extra ‘beyond’
Medieval Latin extravagans
Middle French extravagant
Middle English extravagaunt
English extravagant
Today it means
noun extravagance
Language periods are conventional ranges, not dates for this word.
Etymograph / extravagantness