Morpheme
Cope
Type
bound base
Denotation
join, link, connect
Etymology
Latin cōpula, from contraction of *coapula, from co- + apere + -ula
Evidence
copula, copulability, copulable, copulae, copular, copulas, copulate, copulated, copulatee, copulates, copulating, copulatingly, copulation, copulation, copulative, copulator, copulin, copulist, precopula, pseudocopula, retrocopulate, semicopula, valvocopula
Notes
copula and couple are doublets