What is the meaning of Sark?

A shirt or smock.

To cover with sarking, or thin boards.

pole (an extreme point of an axis, e.g. magnetically or geographically)

alternative form of serk

circle

cycle

back (of the body)

church

a man's shirt

a woman's shift or chemise

to clothe in or provide with a shirt

to cover the rafters of a roof with wooden boards, line a roof with wood for the slates to be nailed on

coffin

Source: wiktionary.org