1) An awkward climb 2) Ascend awkwardly 3) Ascend with effort 4) Climb 5) Climb up 6) Climb with difficulty 7) Exclusively Anglo word 8) Exclusively Saxon word 9) Mount 10) Move with effort 11) Scramble 12) Word of purely Anglo origin 13) Word with Anglo-Saxon origins 1) Mountwitheffort 2) Scale 3) Shinny 
• (n.) The act of clambering. • (v. i.) To climb with difficulty, or with hands and feet; -- also used figuratively. • (v. t.) To ascend by climbing with difficulty.
[Verb] To climb somewhere with difficulty.
Clam'ber intransitive verb [ imperfect & past participle Clambered ; present participle & verbal noun Clambering .] [ OE clambren , clameren , to heap together, climb; akin to Icelandic klambra to clamp, German k...Clam'ber noun The act of clambering. T. Moore. Clam'ber transitive verb To ascend by climbing with difficulty. « Clambering the walls to eye him. Shak. » 
[n] - an awkward climb 2. [v] - climb awkwardly, as if by scrambling
noun an awkward climb; `reaching the crest was a real clamber`
to climb, using both feet and hands; climb with effort or difficulty.