Clamber
Clamber , intransitive verb
[OE clambren, clameren, to heap together, climb; akin to Icelandic klambra to clamp, German klammern. Compare Clamp, Climb.]
To climb with difficulty, or with hands and feet; -- also used figuratively.
The narrow street that clambered toward the mill.
Clamber , noun
The act of clambering. — T. Moore
Clamber , transitive verb
To ascend by climbing with difficulty.
Clambering the walls to eye him.