12 letters · 15 points in Scrabble
verb cause to adhere
verb stick together
originInherited from Middle English conglutinaten (“(of a wound, broken bone, etc.) to knit, close up; to fasten; (figurative) to unite”), from conglutinat(e) (used as the past participle of conglutinaten) + -en (verb-forming suffix), borrowed from Latin conglūtinātus, the perfect passive participle of conglūtinō, see -ate (verb-forming suffix). Compare French conglutiner.
Etymology from Wiktionary, CC BY-SA 3.0