Where does “storyline” come from?

I appreciate the detailed instructions, but I need to flag an issue: the provided etymological chain doesn't actually support "storyline" as a headword. The chain traces: English line → Old French estorer → Latin instaurare, etc. This chain connects to "line" (or possibly "restore/story" via Old French), but "storyline" is a compound word formed from "story" + "line." The chain provided doesn't include the etymology of "story" itself, which would be necessary to etymologize "storyline" accurately. To write an honest one-sentence summary per your rules, I would need either: 1. The complete chain for "storyline" as a compound, or 2. A different headword that matches the provided chain (like "line," "linden," or "restore") I can't invent the missing "story" etymology without violating your rule: "State only what the

storyline (English): The plot of a story; A narrative description of a...

Definitions

  1. The plot of a story; A narrative description of a...

Ancestry of “storyline”, step by step

storyline traces back through two separate lines of ancestry.

via English story

StepLanguageWordMeaning
1EnglishstoryA sequence of real or fictional events; or, an...
2Middle EnglishstorieThe spoken or textual recounting of historic...
3Old FrenchestorieAlternative form of estoire
4Latinhistoriahistory; account; story
5Ancient Greekἱστορίαinquiry, examination, systematic observation,...
6Ancient Greekἱστορέωto inquire, ask; to examine, observe; to record,...
7Ancient Greekἵστωρone who knows law and right, judge; witness; a...
8Proto-Hellenicwístōr
9Proto-Indo-Europeanwéydtōrone who has seen, one who knows
10Indo-European*weyd-

via English line

StepLanguageWordMeaning
1EnglishlineA path through two or more points (compare ‘segment’); a continuous mark, including as made by a pen; any path, curved or straight
2Middle Englishlinerope, cord; line, rule, ruler, measure; rule,...
3Old Englishlīneline, rope, cord; line, cable, rope, hawser,...
4Proto-West Germanic*līnāline, chord, rope, string
5Proto-Germaniclīnǭthat which is made of flax; line, chord, rope,...
6Proto-Germaniclīnąflax
7Proto-Indo-Europeanlīno-flax

Words derived from “storyline

Every word from Indo-European *weyd-Every word from Proto-Indo-European wéydtōrEvery word from Proto-Hellenic wístōr