Etymograph

English

stratification

From stratum + -ification.

A compound of stratum + -ification

Proto-Indo-European *sterh₃- ‘to spread’

Proto-Indo-European *str̥néh₃ti ‘to strew’

Proto-Italic *stornō

Latin sternō ‘spread’

Latin strātum ‘a spread for a bed, coverlet, quilt, blanket’

English stratum

Today it means

noun The process leading to the formation or deposition of layers, especially of sedimentary rocks.

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

Etymograph / stratification