Able to be gathered, collected, or assembled; capable of being brought together.
From 'gather' (from Old English 'gadrian') plus the suffix '-able' (capable of). The root 'gather' ultimately comes from Proto-Germanic and relates to 'good' etymologically through the concept of coming together.
The word 'gatherable' reveals something profound about human nature—we categorize the world by whether things can be collected together, which explains why we have pottery, stamps, and coins as collections.
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