peg

noun

1.
a wooden pin pushed or driven into a surface
nog
Derived from:
peg
2.
small markers inserted into a surface to mark scores or define locations etc.
pin
Derived from:
peg
3.
informal terms for the leg
pin stick
4.
a prosthesis that replaces a missing leg
leg pegleg wooden leg
5.
regulator that can be turned to regulate the pitch of the strings of a stringed instrument
wrest
6.
a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing
oarhole oarlock pin rowlock thole tholepin