Chevillé definitions

Cheville

1) Peg
Found on https://www.crosswordclues.com/clue/cheville

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cheville

unnecessary word used to extend line of verse
Found on http://phrontistery.info/c.html

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Cheville

Stopgap word used by a poet to furnish the required number of syllables in a metrical line.
Found on http://www.poetsgraves.co.uk/glossary_of_poetic_terms.htm

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cheville

a word or expression whose only function is to fill a metrical gap in a verse or to balance a sentence. Cf. expletive (def. 2).
Found on https://www.infoplease.com/dictionary/cheville

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