7 letters · 8 points in Scrabble
noun the act of treating something to make it repel water
verb make tight; secure against leakage
verb close with or as if with a seal
originEtymology tree Proto-Indo-European *sek- Proto-Indo-European *-nóm Proto-Italic *seknom Latin signum Proto-Indo-European *-lós Proto-Indo-European *-elós Proto-Italic *-elos Latin -lum Latin sigillum Anglo-Norman seelbor. Middle English sel English seal English -ing English sealing From seal (“device”) + -ing.
Etymology from Wiktionary, CC BY-SA 3.0