dictionary.com - 2. combine, concur, cooperate. how apt do you want it? Plus a little hint on the side of something more racy or adventurous.
And very telling they say: Can be confused "connive", "conspire". So they think the conniving interpretation is a stretch too far.
But we forget, we make the cardinal sin of Folkdom. We judge by the mores of OUR time. Words morph, meaning & connotations move. The song was written in a different era.


Thesaurus.com