ἄρρητα

Ancient Greek

Etymology

Neuter plural of ἄρρητος (árrhētos).

Pronunciation

 

Noun

ἄρρητᾰ • (árrhētăn pl (genitive ἀρρήτων); second declension

  1. (religion, moral) things not to be spoken; secrets, taboos, mysteries
    especially of sacred or ritually forbidden matters
    • 429 BCE, Sophocles, Oedipus Rex 301:
      διδακτά τε ἄρρητά τ’
      didaktá te árrhētá t’
      both things that may be taught and things not to be spoken.
    • 423 BCE, Aristophanes, The Clouds 302:
      σέβας ἀρρήτων ἱερῶν
      sébas arrhḗtōn hierôn
      reverence for unspeakable sacred rites.
  2. (mathematics, philosophy) irrational numbers, surds
    • 390 BCE, Plato, Hippias Major 303b:
      τὰ ἄρρητα καὶ τὰ ῥητά
      árrhēta kaì tà rhētá
      the irrational and the rational [numbers].

Declension

Usage notes

The neuter plural ἄρρητα (árrhēta) is frequently substantivized in Greek. In religious and moral contexts it denotes matters forbidden to be spoken, while in mathematical and philosophical texts it refers to irrational quantities, opposed to ῥητά (rhētá).

References