O.E.
stearc "stiff, strong" (related to
starian "to stare"), from P.Gmc.
*starkaz (cf. O.N.
sterkr, O.Fris.
sterk, M.Du.
starc, O.H.G.
starah, Ger.
stark, Goth.
*starks), from PIE base
*ster- "stiff, rigid" (see
stare). Meaning "utter, sheer, complete" first recorded c.1400, perhaps from infl. of common phrase
stark dead (c.1375), with
stark mistaken as an intensive adj. Sense of "bare, barren" is from 1833.
Stark naked (1530) is from M.E.
start naked (c.1225), from O.E.
steort "tail, rump." Hence Brit. slang
starkers "naked" (1923).