Where does “keepsake” come from?

I need to flag a critical problem with this chain before attempting the summary. The chain provided is incoherent and cannot support an etymology for "keepsake": 1. **Logical breaks**: The chain jumps from English "keep" to Japanese "酒" (sake, meaning alcohol) to Old English "sacu" (meaning dispute/lawsuit). There is no plausible historical pathway connecting these. 2. **Japanese in a Germanic chain**: Japanese 酒 has no place in the etymology of an English word descended from Proto-Germanic and Proto-Indo-European. 3. **Conflicting meanings**: "Keep" (to retain), Japanese 酒 (alcohol), Old English "sacu" (lawsuit), and the PIE roots don't align semantically or phonologically in any coherent way. 4. **Duplicate PIE roots**: seh₂g- appears twice at the end without explanation

keepsake (English): Some object given by a person and retained in...

Definitions

  1. Some object given by a person and retained in...

Ancestry of “keepsake”, step by step

keepsake traces back through two separate lines of ancestry.

via English saké

StepLanguageWordMeaning
1EnglishsakéRice wine; a drink made from filtered fermented...
2Japaneseany alcoholic beverage
3Japanese麦酒beer; any other alcoholic drink brewed mainly...
4Dutchbierbeer; a serving of beer; a variety of beer
5Middle Dutchbierbeer
6Old Dutchbierbeer
7Proto-West Germanicbeuʀbeer
8Proto-Germanicbeuząbeer
9Proto-Indo-Europeanbʰews-dross, sediment; dross, sediment, brewer's yeast

via English keep

StepLanguageWordMeaning
1EnglishkeepTo continue in (a course or mode of action); to not intermit or fall from; to uphold or maintain
2Middle Englishkepento keep, guard, look after, watch
3Old Englishcēpanto seize, hold, observe
4Proto-West Germanic*kōpijan
5Proto-Germanickōpijanąto look after, observe; to watch, keep, care for
6Proto-Indo-Europeanǵab-

Words derived from “keepsake

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