Where does “ridgeline” come from?

Ridgeline derives from English ridge and English line, which comes from Old English līn, from Proto-Germanic hrugjaz, ultimately from Proto-Indo-European līno- meaning flax or linen.

ridgeline (English): The topmost edge along a mountain ridge

Definitions

  1. The topmost edge along a mountain ridge

Ancestry of “ridgeline”, step by step

ridgeline traces back through two separate lines of ancestry.

via English ridge

StepLanguageWordMeaning
1EnglishridgeThe back of any animal; especially the upper or...
2Middle Englishrigge
3Old Englishhryċġridge; back, spine, ridge, elevated surface
4Old Englishtūnenclosure, yard; place; dwelling
5Proto-West Germanictūnfence
6Proto-Germanictūnąfence; enclosure
7Gaulishdunumfort; hill, hillfort
8Proto-Celticdūnomstronghold, rampart
9Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via English line

StepLanguageWordMeaning
1EnglishlineA path through two or more points (compare ‘segment’); a continuous mark, including as made by a pen; any path, curved or straight
2Middle Englishlinerope, cord; line, rule, ruler, measure; rule,...
3Old Englishlīneline, rope, cord; line, cable, rope, hawser,...
4Proto-West Germanic*līnāline, chord, rope, string
5Proto-Germaniclīnǭthat which is made of flax; line, chord, rope,...
6Proto-Germaniclīnąflax
7Proto-Indo-Europeanlīno-flax
Every word from Proto-Indo-European dʰewh₂-Every word from Proto-Celtic dūnomEvery word from Gaulish dunum
ridgeline — Etymology, Origin & Word History | Etymology Explorer