intercouple
1 of 2verb
in·ter·cou·ple ˌin-tər-ˈkə-pəl 
variants or less commonly inter-couple
intercoupled also inter-coupled; intercoupling also inter-coupling
transitive + intransitive
: to couple together
intercouples them so well that units can then be picked up as one entity and carried off without incident.
Ronald A. Provenzale
Ronald A. ProvenzaleThe [railroad car] coupler will intercouple with all standard radial car couplers now in use Transit Journal
Transit Journalintercouple
2 of 2adjective
variants or inter-couple
: occurring or existing between members of a couple or between two or more couples
Stage controversial scenes in the master bedroom with … inter-couple examinations of where it all went wrong. Raymond Gill
Raymond Gill… the couples terrorise each other with their hilariously-mismatched social agendas. … We chart the inter-couple tensions, the petty snubs and snobberies. Maeve Quigley
Maeve Quigley
Word History
First Known Use
Verb
1902, in the meaning defined above
Adjective
1973, in the meaning defined above