Diad
/ˈdaɪ.æd/noun
A group or pair consisting of two people or things.
Did you know?“Diad” is an established variant spelling of “dyad,” a term used in mathematics, sociology, psychology, and religious studies for a pair or duality.
Etymological Timeline
Proto-Indo-European
PIE
*dwóh
“Two”
Ancient Greek
Greek
δυάς (dyás)
“A pair or group of two”
Late Latin
Latin
dyas
“A pair; a union of two”
16th Century
English
dyad
“A pair or grouping of two”
19th Century
English
diad
“A spelling variant of dyad”
Modern English
English
diad
“A group or pair of two”