Prepositions of source (с / со)

The Preposition "с" (From / Off of)

In Russian, prepositions of destination have strict counterparts for prepositions of source. If you head "to" or "onto" a location or surface using the preposition на, you must indicate coming "from" or "off of" that same place using the preposition с.

Whenever you use с to express source or origin, the noun that follows it must take the Genitive case.

Drops of water fell from the roof.
Капли воды упали с крыши.
The boy climbed down from the tree.
Мальчик слез с дерева.
The wind is blowing from the sea, it is even cold in the room.
Ветер дует с моря, в комнате даже холодно.

The Pronunciation Variant "со"

To make pronunciation smoother, Russian adds an extra vowel to the preposition before certain tricky consonant clusters. The preposition с changes to со when the following word begins with multiple consonants, especially those starting with с, з, or ш (like стол or шкаф).

from / off of (a surface)
со

This variant functions exactly the same way and also requires the Genitive case.

The child is slowly getting off the chair.
Ребёнок медленно слезает со стула.
He quickly wiped the dust off the cabinet.
Он быстро вытер пыль со шкафа.

Action Verbs

You will frequently see с and со paired with verbs that describe removing things from surfaces or descending, such as вытирать (to wipe), срывать (to pick / tear off), or слезать (to climb down / get off).