unwieldy
Unwieldy (adj) means having little physical strength.
Etymology
Comes from Middle English unweldy, made up of un- and wieldy. Cognate with Old Frisian unweldich, unweldech (“having no power, involuntary”), Middle Dutch onweldich (“having no control or mastery over”), and Middle Low German unweldich (“unwieldy”). Compare also Old High German unwaltīg (“powerless”), from which came Middle High German unwaltic and German ungewaltig (“powerless, unmighty”).