The Proto-Indo-European word *deino-
Word *deino-
Meaning day
See also Ancient Macedonian: ἰνδέα ‘noon’
Greek: ἔνδια ‘noon’
Linear B: de-wi-jo ‘personal name’
Proto-Anatolian: diéuots ‘day’
Synonyms *hₐéĝhr̥, *dye(u)-, *h₂ehₓmer-

Comments
Russ. den', Ir. denus/, Lith. diena, Ltv. diena, Skr. dinam, Lat. diēs, Alb. gdhin, Welsh dydd, Polish dzień, Ir. día/dia, Goth. sintīns, Old Prussian deinan, Eng. lencten/lent, Gm. lenzo/Lenz