affinity [affinities](family relationship through marriage of a relative (e.g. sister-in-law), as opposed to consanguinity) noun [UK: ə.ˈfɪ.nə.ti] [US: ə.ˈfɪ.nə.ti]
samhörighet [~en ~er] substantiv {c}
togetherness(state or quality) noun [UK: tə.ˈɡe.ðə.nəs] [US: tə.ˈɡe.ðər.nəs]