Where does “Dia D” come from?

Dia D (Portuguese) comes from Portuguese dia, from Old Portuguese dia, from Vulgar Latin dia, from Latin diēs, from Proto-Italic djēm, from Proto-Italic *djous, from Proto-Indo-European dyḗws, from Proto-Indo-European dyéws — to be bright; sky, heaven.

Dia D (Portuguese): D-Day

Definitions

  1. D-Day

Ancestry of “Dia D”, step by step

Dia D traces back through 3 separate lines of ancestry.

via Portuguese dia

StepLanguageWordMeaning
1Portuguesediaday; occurring on the specified day of the month
2Old Portuguesediaday
3Vulgar Latindiainflection of dius: ## nominative/vocative...
4LatindiēsA day, particularly
5Proto-Italicdjēmaccusative singular of *djous
6Proto-Italic*djous
7Proto-Indo-Europeandyḗwssky, heaven; sky god
8Proto-Indo-Europeandyéwssky, heaven
9Proto-Indo-Europeandyew-to be bright; sky, heaven

via English D-Day

StepLanguageWordMeaning
1EnglishD-DayThe date of any major event planned for the...
2EnglishDThe ordinal number fourth, derived from this...
3EnglishdirhamA unit of currency used in the Arab world,...
4Arabicدِرْهَم
5Middle Persian𐭦𐭥𐭦𐭭drachm
6Ancient Greekδραχμήdrachma; drachm
7Ancient Greekδράσσομαιto grasp, take handfuls; I hold, seize; to hold,...
8Proto-Indo-Europeandreǵʰ-to be unwilling, vexed

via Portuguese d

StepLanguageWordMeaning
1PortuguesedAbbreviation of dom
Every word from Proto-Indo-European dyew-Every word from Proto-Indo-European dyéwsEvery word from Proto-Indo-European dyḗws
Dia D — Etymology, Origin & Word History | Etymology Explorer