Gleys

Part of speech: noun

Definitions

1. A type of soil characterized by its grayish color due to water saturation and reduced oxygen levels
2. Composed of clay or silt that forms in wetland areas
3. Often associated with poor drainage conditions, affecting plant growth and habitat

Etymology: "Gleys" is the plural of "gley", a term from soil science for waterlogged ground that lacks oxygen, typically marked by grey or blue-grey mottled soil. The word arrived in English in the 1920s from Ukrainian "glej", meaning clayey soil, which is a striking journey for a soil term: a Ukrainian farmer's word for heavy clay ended up in the vocabulary of Scottish and English soil scientists. Its Ukrainian source is a Slavic word, traced back to Proto-Slavic "*glьjь", and further to a Proto-Indo-European root that also gave English "clay". The two words are cognates, so the scientific term and the everyday English word for the sticky stuff used in pottery share a distant ancestor. The word was borrowed from Scots, which means it reached international soil science through a Scottish channel rather than directly from Ukraine. Once in English, it stayed a specialist term, used to name the grey, poorly drained horizons that shape how plants can grow.

Synonyms: waterlogged soils, hydric soils