nainsook/ˈneɪnˌsʊk/EtymologyFrom Hindi नैनसुख (nainsukh), from नैन (nain, “eye”) + सुख (sukh, “pleasure, luxury”).nounA soft, fine muslin of South Asian origin, sometimes used to make baby clothes.“Smocking done in colors on fine white batiste, silk mull, or nainsook makes pretty guimpes and dresses for children and very smart blouses for women.”