Where does “rangefinder” come from?

rangefinder (English) comes from English finder, from German Finder, from German -er, from Old High German -āri, from Proto-West Germanic -ārī, from Proto-Germanic -ārijaz, from Latin -ārius, from Proto-Italic *-āzios — Forms relational adjectives to nouns (and rarely numerals).

rangefinder (English): Any of several designs of optical instrument...

Definitions

  1. Any of several designs of optical instrument...

Ancestry of “rangefinder”, step by step

rangefinder traces back through two separate lines of ancestry.

via English finder

StepLanguageWordMeaning
1EnglishfinderOne who finds or discovers something; An optical...
2GermanFinderfinder
3German-erForms agent nouns etc. from verbs, suffixed to...
4Old High German-āriused to form agent nouns
5Proto-West Germanic-ārī-er
6Proto-Germanic-ārijaz-er
7Latin-āriuser
8Proto-Italic*-āziosForms relational adjectives to nouns (and rarely numerals)

via English range

StepLanguageWordMeaning
1EnglishrangeA line or series of mountains, buildings, etc; A...
2Middle Englishrengen
3Old Frenchrengierto line up; to form ranks
4Old Frenchrengplace; position
5Latinrencusrow; order, rank
6Gaulishrekos
7Proto-Celticreketito arrange
8Proto-Indo-European(H)rek-to set in order
Every word from Proto-Italic *-āzios
rangefinder — Etymology, Origin & Word History | Etymology Explorer