Proto-IE: *meis-
Meaning: to grow turbid, indiscernible
Old Indian: miṣáti `to open the eyes, wink, blink', ni-míṣ f., ni-miṣa- m. `winking or twinkling of the eye'; miṣa- n. `false appearance, fraud, deceit', mīḍam adv. `in a low tone, softly'; mīlati `to close the eyes'
Russ. meaning: становиться/делать мутным, плохо видным