Д366
ДУША МОЙ
old-fash,
collNPInvarused as vocative
usu. this
WO a friendly, familiar way of addressing
s.o. : (my) dear(est) (darling)(in limited contexts) (my) love(man to woman) my sweet(man to man) my good manmy dear chap(man to a younger man or a boy) dear lad.