Where does “dinnertime” come from?

I need to pause here because this etymological chain doesn't make coherent sense as presented. The chain appears to conflate multiple unrelated words: - "time" (which has Germanic roots, not from Old French/Latin) - "disner" (Old French, related to "dinner" - from Latin dis- + ieiunus, meaning "to break a fast") - θέμα and τίθημι (Ancient Greek words meaning "thing placed" and "to place/put") These don't form a legitimate etymological line for "dinnertime." The Greek elements seem misplaced or copied in error (they appear three times identically at the end). **I cannot write an accurate one-sentence origin summary for this chain.** Doing so would violate the core instruction to "state only what the chain supports" and "do not invent." To help you: Could you verify the source chain

dinnertime (English): The time when dinner takes place; The time when...

Definitions

  1. The time when dinner takes place; The time when...

Ancestry of “dinnertime”, step by step

dinnertime traces back through two separate lines of ancestry.

via English dinner

StepLanguageWordMeaning
1EnglishdinnerA midday meal; The main meal of the day, often...
2Middle Englishdynerlunch second meal of the day, eaten in the late morning
3Old Frenchdisnerto dine; to eat the main meal of the day; dinner
4Vulgar Latindisiuno
5Latindisieiūnāre
6Latiniēiūnōto fast
7Latiniēiūnusfasting, abstinent, hungry
8Latiniaiūnus
9Proto-Italicjagjūnos
10Proto-Indo-EuropeanHyeh₂ǵ-yu-
11Proto-Indo-EuropeanHyeh₂ǵ-ye/o-to sacrifice

via English Time

StepLanguageWordMeaning
1EnglishTimeThe inevitable progression into the future with the passing of present and past events
2Middle Englishtymethyme; time; A specific duration or period of...
3Old Frenchthym
4Latinthymumthyme; accusative singular of thymus
5Ancient Greekθύμονthyme
6Ancient GreekθύωI offer in sacrifice, slay, burn, immolate; I...
7Proto-Indo-Europeandʰewh₂-smoke; mist, haze
Every word from Proto-Indo-European Hyeh₂ǵ-ye/o-Every word from Proto-Indo-European Hyeh₂ǵ-yu-Every word from Proto-Italic jagjūnos