To separate or disconnect two things that were joined or linked together as a pair.
From 'dis-' (to do the opposite of) plus 'couple' (from Latin 'copula' meaning to join or bind). A rare word meaning to undo what coupling does.
While 'discouple' is quite rare today, it appears in physics when scientists talk about 'decoupling' particles—like when the electromagnetic and weak nuclear forces decoupled fractions of a second after the Big Bang, completely changing physics itself.
Complete word intelligence in one call. Free tier — 50 lookups/day.