An Etymological Dictionary of the German Language/trocken
trocken, adj. ‘dry, barren,’ from the equiv. MidHG. trocken, trucken (truchen), OHG. trochan (trucchan); comp. OSax. drucno, drocno, ‘dry.’ Corresponding to the equiv. LG. dreuge, Du. droog (comp. Droge, to which Du. droogte, ‘dryness,’ is allied), AS. drŷge, E. dry (allied to drought), which are derived from cognate roots. With the Teut. root drū̆k, drū̆g, draug, ‘to be dry,’ is also connected OIc. draugr, ‘dry wood.’ A pre-Teut. root dkrū̆ḳ (dhrū̆g) has not yet been found in the other Aryan languages.