दिवादिभ्यः श्यन्
SV: none
AV: सार्वधातुके कर्तरि

Language Meaning: A verb belonging to the दिवादिगण gets the श्यन् in presence of a सार्वधातुक प्रत्यय in कर्तरि प्रयोग.

Literal Meaning: -
roll inward wave till (give/roll as object) steady connect - long/erect connect pull