What is the meaning of Vy-?

a prefix, often indicating the perfective aspect

out of (opposite of v- +‎ "into")

(as an imperfective verb) (often used with se) intensification: added to mean very much, with more or less positive result

verbal prefix denoting movement or direction outwards, in both concrete and abstract senses: out

verbal prefix denoting movement to the side or deviation from a straight path: de-

verbal prefix denoting movement or direction upwards: up

verbal prefix denoting action directed into depth, performed in depth, or hollowing out

verbal prefix denoting the filling or covering of a space or surface with a material

verbal prefix denoting a change of state or the acquisition of a quality

verbal prefix denoting a resultative action, such as achieving a product, acquiring something, or total exhaustion

verbal prefix denoting an ingressive action or the beginning of a movement

verbal prefix denoting an intensive, iterative, or prolonged action

verbal prefix used redundantly in certain verbal forms

verbal prefix used in lexicalized forms where the original prefixal meaning is obscured

out (verbal prefix denoting movement or direction outwards, in both concrete and abstract senses)

de- (verbal prefix denoting movement to the side or deviation from a straight path)

up (verbal prefix denoting movement or direction upwards)

verbal prefix denoting action directed into depth, performed in depth, or hollowing out

verbal prefix denoting the filling or covering of a space or surface with a material

verbal prefix denoting a change of state or the acquisition of a quality

verbal prefix denoting a resultative action, such as achieving a product, acquiring something, or total exhaustion

verbal prefix denoting an ingressive action or the beginning of a movement

verbal prefix denoting an intensive, iterative, or prolonged action

verbal prefix serving as a pure perfective aspect marker

verbal prefix used redundantly in certain verbal forms

verbal prefix used in lexicalized forms where the original prefixal meaning is obscured

form of vi- used before a vowel in certain words

1. vi class_(VIII) noun prefix and adjective agreement prefix

   vi class_(VIII) noun prefix and adjective agreement prefix

   impersonal adjective agreement prefix

   Forms adverbs of manner from declinable adjectives.

   Source: wiktionary.org