The quality or state of being grateful or showing gratitude.
Formed from 'grat-' (relating to gratitude) with the suffix '-ility' (quality or state), though this is a rare or archaic formation in English. It appears occasionally in historical texts but has largely been replaced by 'gratitude.'
This word is so obscure that most dictionaries don't include it—it's a 'ghost word' that exists in fragments of older texts, showing how English speakers once experimented with forming words but then abandoned them for clearer alternatives.
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