Where does “linjapuolustus” come from?

linjapuolustus (Finnish) comes from Finnish linja, from Old Swedish linia, from Latin līnea, from Latin līnum, from Proto-Italic līnom, from Proto-Indo-European līnom — flax.

linjapuolustus (Finnish): line defense

Definitions

line defense

Ancestry of “linjapuolustus”, step by step

linjapuolustus traces back through two separate lines of ancestry.

via Finnish linja

Step	Language	Word	Meaning
1	Finnish	linja	line; policy, line; curriculum, study program
2	Old Swedish	linia	—
3	Latin	līnea	A linen thread
4	Latin	līnum	flax
5	Proto-Italic	līnom	—
6	Proto-Indo-European	līnom	flax

via Finnish puolustus

Step	Language	Word	Meaning
1	Finnish	puolustus	defense US, defence UK
2	Finnish	puolustaa	to defend
3	Finnish	puolus	—
4	Finnish	puoli	half; when followed by a number representing an...
5	Proto-Finnic	pooli	half, side; half
6	Proto-Uralic	pälä	half

Every word from Proto-Indo-European līnom →Every word from Proto-Italic līnom →Every word from Latin līnum →