10 letters · 21 points in Scrabble
verb unite chemically so that the product is easily broken down into the original compounds
verb add inflections showing person, number, gender, tense, aspect, etc.
verb undergo conjugation
originInflected form of conjugate. Adjective sense 2 is a semantic loan from German Konjugation, konjugieren, coined 1899 by German chemist Johannes Thiele.
Etymology from Wiktionary, CC BY-SA 3.0