Where does “non-treasure” come from?

non-treasure (English) comes from English treasure, from Middle English tresour, from Old French tresor, from Latin thēsaurus, from Ancient Greek θησαυρός, from Ancient Greek τίθημι, from Proto-Indo-European dʰeh₁- — to do, put, place.

Ancestry of “non-treasure”, step by step

non-treasure traces back through two separate lines of ancestry.

via English treasure

StepLanguageWordMeaning
1EnglishtreasureA collection of valuable things; accumulated...
2Middle EnglishtresourSomething or someone of great value
3Old Frenchtresortreasure
4Latinthēsaurustreasure, hoard
5Ancient Greekθησαυρόςtreasure; vault, repository, chest
6Ancient GreekτίθημιI put, place, set; I make, cause to be; I make
7Proto-Indo-Europeandʰeh₁-to do, put, place

via English non

StepLanguageWordMeaning
1EnglishnonObsolete form of none
2Frenchnonno; not; a no, a negative response
3Old Frenchnonno; not; Alternative form of nom
4Latinnōnnot
5Old Latinnoenum
6Proto-Indo-Europeanóynosone; single
Every word from Proto-Indo-European dʰeh₁-Every word from Ancient Greek τίθημιEvery word from Ancient Greek θησαυρός