Where does “tache” come from?

tache (Middle English) comes from Old French tasche, from Frankish taska, from Proto-Germanic taskǭ, from Proto-Indo-European das-, from Translingual da, from English deca-, from French déca-, from Latin decās — front.

Ancestry of “tache”, step by step

tache traces back through two separate lines of ancestry.

via Old French tasche

StepLanguageWordMeaning
1Old Frenchtascheduty; obligation
2Frankishtaskapouch
3Proto-Germanictaskǭbag, purse; pouch, pocket
4Proto-Indo-Europeandas-
5Translingualda
6Englishdeca-Greek number...
7Frenchdéca-deca-
8Latindecāsa decade (period of ten years)
9Ancient Greekδεκάςthe number ten; a group of ten, decade
10Ancient Greek-ᾰ́ςgroup of
11Proto-Indo-European-óntsDerives nouns denoting body parts
12Hungarianöntto pour; to cast; accusative singular of ön
13Hungarianönyou
14Hungarianön-self-
15Turkishönfront

via Old French tasse

StepLanguageWordMeaning
1Old Frenchtasse
2Medieval Latintassa
3Arabicطَاسbowl, basin; bowl, cup
4Persianتستtest
5EnglishTesta Test match
6Germantestento test
7GermanTesttest; melting pot
8EnglishtestA challenge, trial; A cupel or cupelling hearth...
9Middle Englishteste
10Old Frenchtestehead
11Latintestiswitness; one who testifies or attests; testicle
12Latinterstis
13Latintrīstissad, unhappy, melancholy, morose
14Proto-Indo-Europeantristh₂sa third party standing, after the two parties to...
15Proto-Indo-Europeansteh₂-to stand
Every word from Turkish önEvery word from Ancient Greek -ᾰ́ςEvery word from English deca-