English

rangefinding

From range + finding.

A compound of range + finding

Proto-Germanic *hringaz ‘ring, circle’

Frankish *hring

Old French rang ‘a rank, row’

Old French rengier ‘to range, rank’

Middle English rengen

English range

Middle English fyndyng

Today it means

noun The act of determining the distance to a target.

Language periods are conventional ranges, not dates for this word.

Etymograph / rangefinding