Where does “thô” come from?

thô (English) comes from Middle English tho, from Old English þā, from Proto-Germanic þai, from Proto-Indo-European to-, from Proto-Indo-European só — this; that.

thô (English): Abbreviation of though

Definitions

Abbreviation of though

Ancestry of “thô”, step by step

Step	Language	Word	Meaning
1	Middle English	tho	the
2	Old English	þā	the, those; then, when; those
3	Proto-Germanic	þai	they; those; nominative plural masculine of *sa
4	Proto-Indo-European	to-	it; that; the, that
5	Proto-Indo-European	só	this; that

Every word from Proto-Indo-European só →Every word from Proto-Indo-European to- →Every word from Proto-Germanic þai →