Where does “better” come from?

I need to work through this etymology chain carefully. The chain provided is: English bettor | English bet | English abet | English byte | English bite | Proto-Indo-European bʰed- | Latin ad- | Latin ad Wait, there's an issue here. The headword is "better" but the chain starts with "bettor" (one who bets). These are different words. Let me reconsider what the chain actually shows. Looking at the chain again, it seems problematic because: 1. "bettor" and "better" are not the same word 2. The chain includes "abet" which shares "bet" but has "a-" prefix from Latin "ad-" 3. "byte" and "bite" both seem to trace to bʰed- 4. The chain ends with Latin "ad" twice, which is odd This chain appears corrupted or incorrect

better (English): comparative form of good: more good; comparative...

Definitions

  1. comparative form of good: more good; comparative...

Ancestry of “better”, step by step

better traces back through two separate lines of ancestry.

via English BET

StepLanguageWordMeaning
1EnglishBETAn adsorption technique used to measure the...
2Hebrewביתhouse; stanza; Temple
3EnglishbyteA short sequence of bits that can be operated on...
4EnglishbiteTo cut into something by clamping the teeth; To...
5Middle Englishbitento bite
6Old Englishbetēonto cover, surround, enclose; to cover, surround,...
7Old Englishtēonto drag, draw, pull; to train, discipline; to...
8Old Englishtēohan
9Proto-West Germanicteuhanto pull; to lead
10Proto-Germanicteuhanąto lead; to pull behind oneself, draw, drag
11Proto-Indo-Europeandewk-to pull, to draw; to lead

via Middle English better

StepLanguageWordMeaning
1Middle EnglishbetterAlternative form of bettre; Alternative form of...
2Old Englishbeterabetter
3Latinbatizō

Words derived from “better

Every word from Proto-Indo-European dewk-Every word from Proto-Germanic teuhanąEvery word from Proto-West Germanic teuhan