Etymology

Plural of a singular form from Proto-Tocharian *ākru, from Proto-Indo-European *h₂eḱru- < *dr̥ḱ-h₂eḱru- ‎(“eye bitter”) (compare *dáḱru-). Compare Tocharian A ākär, Sanskrit अश्रु ‎(áśru), Avestan asrū-, Lithuanian ãšara.