Where does “boortoren” come from?

boortoren (Dutch) comes from Dutch toren, from Middle Dutch torre, from Old Dutch turn, from Old French Tur, from Latin Turris, from Ancient Greek τύρρις, from Ancient Greek τύρσις — tower, bastion.

boortoren (Dutch): drilling tower

Definitions

drilling tower

Ancestry of “boortoren”, step by step

boortoren traces back through two separate lines of ancestry.

via Dutch toren

Step	Language	Word	Meaning
1	Dutch	toren	tower; rook; The fin or sail of a submarine
2	Middle Dutch	torre	—
3	Old Dutch	turn	—
4	Old French	Tur	—
5	Latin	Turris	A river of Venetia, now called Torre
6	Ancient Greek	τύρρις	tower, walled city
7	Ancient Greek	τύρσις	tower, bastion

via Dutch boren

Step	Language	Word	Meaning
1	Dutch	boren	to drill
2	Middle Dutch	bōren	to drill
3	Old Dutch	boron	to drill, bore
4	Proto-Germanic	burōną	to drill, pierce; to bore
5	Proto-Indo-European	bʰerH-	to pierce; to strike; brown

Every word from Ancient Greek τύρσις →Every word from Ancient Greek τύρρις →Every word from Latin Turris →