Where does “keyframe” come from?

I can't write this summary because the etymology chain provided doesn't support "keyframe" as an English word. The chain traces "key" and "quay" back through Spanish, Proto-Germanic, and Proto-Indo-European roots, but "keyframe" is a compound term from film/animation terminology that would require a different etymological path (likely combining "key" with "frame," where "frame" has its own distinct origin through Old French and Proto-Germanic). To write an accurate one-sentence summary, I would need either: 1. A verified etymology chain for "keyframe" specifically, or 2. Clarification that you want the etymology for "key" alone Which would you prefer?

keyframe (English): A single frame in an animation sequence drawn by...

Definitions

  1. A single frame in an animation sequence drawn by...

Ancestry of “keyframe”, step by step

keyframe traces back through two separate lines of ancestry.

via English frame

StepLanguageWordMeaning
1EnglishframeTo fit, as for a specific end or purpose; make...
2Middle Englishframe
3Old Norseframiadvancement
4Old Norseframforward, forth
5Proto-Germanicframfrom; by, due to; forth, forward
6Proto-Germanicframazforward, prominent
7Proto-Indo-Europeanprom-forth, forward
8Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
9Proto-Indo-Europeanper-before, in front; first; to go through
10Proto-Indo-Europeanpr̥tóspassed , crossed

via English key

StepLanguageWordMeaning
1EnglishkeyAn object designed to open and close a lock; An...
2EnglishcayA small, low island largely made of sand or coral
3SpanishCayokey island
4Taínocayosmall island

Words derived from “keyframe

Every word from Proto-Indo-European pr̥tós
keyframe — Etymology, Origin & Word History | Etymology Explorer