A connection or relationship shared jointly between two or more people or things; a mutual or reciprocal bond.
From the prefix 'co-' (together, jointly) combined with 'connection' (from Latin connectere, meaning to bind together). The prefix was added to indicate a shared or mutual connection between parties.
This word appears in legal and business documents when multiple parties are equally linked to an obligation or relationship. It's the kind of word that lawyers love because it precisely captures shared responsibility without singling out one party over another.
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