Right
夬 supplies the sound — guài shifted to quē, regular Old Chinese velar/affricate alternation in this series.
夬 also contributes a sharp semantic flavour: it depicts a hand breaking something off, the idea of cleaving or splitting. Combined with the broken jar on the left, the whole picture sharpens to 'a vessel chipped, something missing'. Same series:
决,
诀,
缺.