An Etymological Dictionary of the German Language/Zecke
Zecke, f., ‘tick,’ from the equiv. MidHG. zëcke, m. and f.; corresponding to Du. teekt, AS. *tîca (ticia is misspelt for tiica), E. tike, tick. From the old West Teut. tī̆ko, tikko, are derived the equiv. Ital. zecca, Fr. tique. Aryan digh- is indicated by Armen. tiz, ‘tick,’ which is probably primit. allied to the Teut. cognates.