27 Mar strata

Plural of stratum: In geology, layers of rocks. Looking at geological strata can tell you about the environment of the period during which a stratum was the surface of the planet. In language, stratification refers to parts or features of phrases or sentences that get deeper and deeper into the meaning of the words.
Keywords: language
knowledge
abstraction
interpretation
understanding
grammar
References: lexicography
linguistic strata
natural language
semantics
syntax
words/morphology