Etymology of the Latin word coniunctivus
the Late Latin word coniunctivus (subjunctive; conjunctive, subjunctive mood; connective; of connection, serving to connect)
derived from the Latin word coniunctus (adjoining, contiguous, linked; closely connected, related, attached; process, state of being joined together; connection)
derived from the Latin word coniungere (connect, join, yoke together; unite; place, bring side-by-side)
using the Latin prefix con- (together)
derived from the Latin word coniugere