English
gradational
From gradation + -al.
Formed from gradation + -al
Proto-Indo-European *gʰredʰ- ‘to walk, go’
…
Latin gradus ‘step’
Latin gradātus ‘stepped’
Latin gradātiō
French gradation
English gradation
Today it means
adj By regular steps or gradations.
Language periods are conventional ranges, not dates for this word.
Etymograph / gradational