Free from grease, oil, or fatty substances; clean and dry.
From 'grease' + '-less' (Old English suffix meaning 'without'); this is a straightforward formation meaning 'without grease,' combining a noun with the productive suffix for negation.
The '-less' suffix is one of the most helpful word-building tools in English—you can add it to almost any noun to say 'without that thing,' and native speakers instantly understand, even with made-up combinations like 'tree-less' or 'joy-less.'
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