A bakers dozen of obscure words that you may not have come across before.
Dactylogram: Fingerprint.
Diaporesis: Rhetorical expression of uncertainty of which of two options to adopt.
Disembrangle: To free from dispute.
Menisciform: Shaped like a crescent.
Natable: Able to float.
Neologism: A newly coined word or expression.
Onomastics: The study of names.
Pantisocracy: A form of utopian social organization in which all are equal in social position and responsibility.
Polysemantic: Word with more than one possible meaning.
Scenography: Representation of an object in perspective.
Sigla: A letter or symbol which stands for a word or name.
Subnivium: The seasonal micro-environment beneath the snow.
Tetrakis hexahedron: Cube with a pyramid erected on each face.