8 letters · 10 points in Scrabble
noun pneumatic tire not needing an inner tube to be airtight
adjective of a tire; not needing an inner tube
originEtymology tree Latin tuba Latin tubusder. Middle French tubeder. English tube Proto-Indo-European *lewh₁- Proto-Indo-European *lewHs-der. Proto-Germanic *leusaną Proto-Germanic *lausaz Proto-Germanic *-lausaz Proto-West Germanic *-laus Old English -lēas Middle English -les English -less English tubeless From tube + -less.
Etymology from Wiktionary, CC BY-SA 3.0