A rare or archaic term possibly referring to the practice of making gestures or a collection of gestures.
Possibly derived from Latin gestus (gesture) with a Latinate or Romance suffix. This appears to be an obscure or obsolete English formation without clear historical documentation.
Gestonie is so rare that even comprehensive historical dictionaries barely mention it—it's the kind of word that reminds us that English once experimented with many more word forms than survived into modern usage. Some Renaissance scholars may have invented it but it never caught on.
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