Etymology

From Sanskrit अश्रु ‎(áśru). Compare with Hindustani आँसू ‎(ā̃sū) / آنسو ‎(ā̃sū) and Gujarati આંસું ‎(ā̃sũ). Ultimately from Proto-Indo-Iranian (compare Persian ارس ‎(ars)), from Proto-Indo-European *h₂eḱru-, from compound *dr̥ḱ-h₂eḱru- ‎(“eye bitter”) (compare *dáḱru-).