'Stratify' definitions:

Definition of 'stratify'

(from WordNet)
verb
Divide society into social classes or castes; "Income distribution often stratifies a society"
verb
Form layers or strata; "The rock stratifies"
verb
Develop different social levels, classes, or castes; "Society stratifies when the income gap widens"
verb
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"
verb
Render fertile and preserve by placing between layers of earth or sand; "stratify seeds"

Definition of 'Stratify'

From: GCIDE
  • Stratify \Strat"i*fy\, v. t. [imp. & p. p. Stratified; p. pr. & vb. n. Stratifying.] [Stratum + -fy: cf. F. stratifier.] To form or deposit in strata, or layers, as substances in the earth; to arrange in strata. [1913 Webster] Stratigraphic