Where does “tax-free” come from?

tax-free (English) comes from English tax, from Middle English taxe, from Old French taxe, from Latin taxa, from Latin taxāre, from Latin Taxus, from Ancient Greek εἶδος, from Spanish -scopio — to see, to look, to observe.

tax-free (English): exempt from taxation

Definitions

exempt from taxation

Ancestry of “tax-free”, step by step

Step	Language	Word	Meaning
1	English	tax	Money paid to the government other than for...
2	Middle English	taxe	—
3	Old French	taxe	—
4	Latin	taxa	second-person singular present active imperative...
5	Latin	taxāre	—
6	Latin	Taxus	yew
7	Ancient Greek	εἶδος	That which is seen: form, image, shape;...
8	Spanish	-scopio	-scope
9	Latin	-scopium	—
10	Ancient Greek	σκοπέω	I look, look at, behold; I examine, inspect; 413...
11	Ancient Greek	σκοπός	watcher, lookout; protector, guardian; spy, scout
12	Ancient Greek	σκέπτομαι	I look at, examine; I examine, consider, think
13	Proto-Hellenic	sképťomai	to look at
14	Proto-Indo-European	spéḱyeti	to be looking at, to keep looking at
15	Proto-Indo-European	speḱ-	to see, to look, to observe

Every word from Proto-Indo-European speḱ- →