Disjunction
/dɪsˈdʒʌŋk.ʃən/noun
The act of disconnecting or separating; in logic, a statement true when at least one of two statements is true.
Did you know?Its root comes from Latin iungere, “to join,” the same ancient source behind words like yoke and junction, so disjunction is literally the anti-joining of a very old word-family.
Etymological Timeline
Proto-Indo-European
PIE
*yeug-
“to join, yoke together”
Latin
Latin
iungere
“to join, fasten together”
Latin
Latin
disiunctio
“a separation, division; in logic, disjunction”
Old French
Old French
disjonction
“a separation, disconnection”
Middle English
English
disjunctioun
“a separating or dividing apart”
Modern English
English
disjunction
“the act of separating; in logic, an either-or relation”