D defs.my
Entry 1 sense Webster, 1913

Stratify

/străt'-əf-īˌ/ · Strat·i·fy · IPA /ˈstratɪfʌɪ/
01 v. t. To form or deposit in strata, or layers, as substances in the earth; to arrange in strata.
imp. & p. p. Stratified; p. pr. & vb. n. Stratifying
  1. 1.
    To form or deposit in strata, or layers, as substances in the earth; to arrange in strata.