English
steplength
From step + length.
Proto-Indo-European *stebʰ- ‘to support’
Proto-Germanic *stapjaną ‘to step’
Proto-West Germanic *stappjan ‘to step’
Old English steppan ‘to step’
Middle English steppen ‘to step’
English step
Proto-Indo-European *dlongʰos ‘long’
…
Proto-Germanic *langiþō ‘longness’
Proto-West Germanic *langiþu ‘longness’
Old English lengþ
Middle English lengthe
English length
Today it means
noun The length of a step (or of a stride)
Language periods are conventional ranges, not dates for this word.
Etymograph / steplength