Filling Lexical Gaps: Buoyancy/Buoyant, Levity/???
This is a particular problem I came across with writing something today. Specifically, the following passage:
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I felt I had used buoyant too many times already, and also wished to convey something between optimistic and just lighthearted, but not exactly either concept. The issue was, while the counterpart appropriate for that sentence exists for other words (gravity -> grave, buoyancy -> buoyant), it does not exist for levity.
As such, I propose such a word, either leve or levete. "Of a far more leve nature", or "of a far more levete nature". I find both potentials equally tempting, one might sound better in some sentences versus others.
Given the etymology of gravity/grave, I think the most defensible of the two is leve. Its one downside is sounding like leave, or being mistaken for a misspelling of leave.