Where does “doorframe” come from?

I need to carefully examine this chain, as it appears problematic. The chain shows: English door → Middle English fremmen → Old English fremman → Proto-Germanic durz → Proto-Indo-European dʰer- → Proto-Indo-European dʰwer- → Proto-Indo-European -yeti However, there are clear inconsistencies here: - "door" doesn't etymologically derive from "fremmen" (which relates to "from") - The progression from dʰer- to dʰwer- to -yeti doesn't represent a clear chronological chain - "doorframe" as a compound would need "door" + "frame," but this chain doesn't support that Given the instruction to "state only what the chain supports" and not invent, and given that the chain provided appears corrupted or incorrect, I cannot write an accurate one-sentence etymology that follows the rules.

doorframe (English): The frame into which a door is fitted

Definitions

  1. The frame into which a door is fitted

Ancestry of “doorframe”, step by step

doorframe 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 door

StepLanguageWordMeaning
1EnglishdoorA portal of entry into a building, room, or...
2Middle EnglishdoreA door or gate structure barring an entrance
3Old Englishdorabumblebee
4Proto-Germanicdurôbumblebee, humming insect
5Proto-Indo-Europeandʰer-to support; to hold
Every word from Proto-Indo-European pr̥tós