An Etymological Dictionary of the German Language/lang
Appearance
lang, adj., ‘long,’ from the equiv. MidHG. lanc (g), OHG. (and OSax.) lang; it corresponds to AS. and E. long, Goth. laggs, OIc. langr, Du. and LG. lang. A common Teut. adj. primit. allied to Lat. longus; it also cognates, perhaps, with OPers. drânga, so that in Lat. and Teut. a dental (d or dh) may have been lost; Gr. δολιχός, OSlov. dlŭgŭ, Sans. dîrghás, ‘long,’ are certainly not allied. —