Hans, I’m afraid that I have just discovered that line numbering prevents hyphenation in some circunstances: \setuppapersize[A8] \setuplanguage[en][patterns={en, agr}] \definefontfamily[mainface][serif][GFS Didot] \setupbodyfont[mainface, 13pt] \starttext \startlinenumbering \hsize\zeropoint κοινώσεσθαι sentence \stoplinenumbering \startlinenumbering \hsize\zeropoint sentence κοινώσεσθαι \stoplinenumbering \hsize\zeropoint κοινώσεσθαι sentence \stoptext I’m afraid this may be a bug. Many thanks for your help, Pablo -- http://www.ousia.tk