stratify -- (divide society into social classes or castes; "Income distribution often stratifies a society")
stratify -- (form layers or strata; "The rock stratifies")
stratify -- (develop different social levels, classes, or castes; "Society stratifies when the income gap widens")
stratify -- (form, arrange, or deposit in layers; "The fish are stratified in barrels"; "The rock was stratified by the force of the water"; "A statistician stratifies the list of names according to the addresses")
stratify -- (render fertile and preserve by placing between layers of earth or sand; "stratify seeds")
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