  We find all words $W(x,y,z)$ in the free group $F(x,y,z)$, such that for
every group $G$ and an element $c\in G$ the algebraic system $(G,*_{W,c})$ with
the binary operation $*_{W,c}$ given by $a*_{W,c}b=W(a,b,c)$ for $a,b\in G$ is
a quandle. Such quandles are called verbal quandles with one parameter.
