glassen /ˈɡlɑːsən/adjective 2verb 1forms 5 adjective2 •Made of or consisting of glass.From the castle calls Ileana, Refrain (Looking) through the glassen windows, (Looking) through the glassen windows: […] — 2012 •Resembling glass; glassy; glazed.And pursues the dice with glassen eyes. — 1640 verb1 •To coat or cover (e.g. pottery, etc.) with glaze; make glassy. formsglassened · glassening · glassens · more glassen · most glassen