köken: From Middle High German gestern, from Old High German gesteron, gesteren, from Proto-West Germanic *gesteran. Cognate with English yester, Dutch gisteren.
aile: gesternabend, gestern abend, gestern Abend, von gestern
köken: Inherited from Old French demain, from Late Latin dē māne (“early in the morning”), from Latin dē + māne, from Proto-Indo-European *meh₂- (“to mature, ripen”).
aile: à demain, ce n'est pas demain la veille, demain est un autre jour
köken: From *ertägä (“tomorrow”), originally a dative case of Proto-Turkic *ẹ̄rte (“morning”), from Proto-Turkic *ẹ̄r (“early”). Cognate with Uzbek ertaga (“tomorrow”), Bashkir иртәгә (irtəgə, “tomorrow”), etc.
köken: From *ertägä (“tomorrow”), originally a dative case of Proto-Turkic *ẹ̄rte (“morning”), from Proto-Turkic *ẹ̄r (“early”). Compare Uzbek ertaga (“tomorrow”).
köken: From Old Galician-Portuguese a mannãa (literally "at morning", in a similar sense to English tomorrow) from Vulgar Latin *māneāna. Displaced Old Galician-Portuguese cras.
köken: Inherited from Old Czech včera, from Proto-Slavic *vьčera. By surface analysis, from večer (“evening”) (possibly a remnant of the original instrumental suffix as reconstructed in Proto-Balto-Slavic *wékerōˀ, compare doma).
Inherited from Prakrit 𑀓𑀮𑁆𑀮𑀁 (kallaṃ, “tomorrow, yesterday”), from Sanskrit कल्यम् (kalyam, “at dawn, yesterday”), an adverbial accusative attested as early as the Mahabharata, from कल्य (kalya, “dawn”). Cognate with Marathi काल (kāl), Bengali কাল (kal), and Punjabi ਕੱਲ੍ਹ (kallh).