cryptophasia
English
Etymology
From Ancient Greek κρυπτός (kruptós, “hidden”) + -φασία (-phasía, “speech”) (from φάσις (phásis, “utterance”), from φημί (phēmí, “I speak”)). Equivalent to crypto- + -phasia.
Noun
cryptophasia (uncountable)
- The development by twins (identical or fraternal) of a language that only they can understand.
- 2006, Karen Gottesman, Raising Twins After the First Year: Everything You Need to Know about Bringing Up Twins - From Toddlers to Preteens, Da Capo Press, →ISBN, page 84:
- Whether it's called cryptophasia, idioglossia, autonomous language, or plain ol' twin talk, the secret language among twins has long been a source of fascination to both parents and researchers alike. According to twin statistics ...