swaad generally means flavour and swaadishTH flavourful/taste:
S سواد स्वाद svād, and H. सवाद sawād, s.m. Tasting, eating, drinking; relishing; taste, relish, flavour, savour; sweetness; enjoyment, pleasure:—svād paṛnā (with dat. of person, and gen. of thing), To acquire a taste (for, -kā)...