Etymograph

English

anaptychus

Anaptychus comes from Ancient Greek ἀνάπτυχος ‘unfolding’, and goes back to πτύσσω ‘to fold’.

  1. Ancient Greekc. 800–300 BCEπτύσσω‘to fold’
  2. Ancient Greek, derivedc. 800–300 BCEἀναπτύσσωanaptússō‘to unfold’
  3. Ancient Greek, derivedc. 800–300 BCEἀνάπτυχοςanáptukhos‘unfolding’
  4. New Latinc. 1500–1900anaptychus
  5. Englishtodaysame form

attested reconstructed ? uncertain or disputed

Lineage

  1. Ancient Greekc. 800–300 BCEπτύσσω‘to fold’
  2. Ancient Greek, derivedc. 800–300 BCEἀναπτύσσωanaptússō‘to unfold’
  3. Ancient Greek, derivedc. 800–300 BCEἀνάπτυχοςanáptukhos‘unfolding’
  4. New Latinc. 1500–1900anaptychus
  5. Englishtodaysame form

Today it means

noun One of a pair of shelly plates found in some cephalopods, such as the ammonites. They are now considered to have been parts of the jaw.

Language periods are conventional ranges, not dates for this word.

Etymograph / Ancient Greek πτύσσω / anaptychus