16 letters · 23 points in Scrabble
adjective impossible to deny or disprove
adjective necessarily or demonstrably true
originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in-bor. Middle English in- English in- English controvert Proto-Indo-European *-tḗr Proto-Indo-European *-dʰlom Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ibilis Old French -ibleder. Middle English -ible English -ible English controvertible English incontrovertible From in- +…
Etymology from Wiktionary, CC BY-SA 3.0