Chapter 2: ID Waivers 16 $ Understanding the ODP in PA: Intellectual Disability and Autism Services CHAPTER 2: INTELLECTUAL DISABILITY WAIVERS This Chapter is a detailed description of the two waivers available for people with Intellectual Disability.
Di-. a prefix, signifying twofold, double, twice. Di-. denoting two atoms, radicals, groups, or equivalents, as the case may be. See Bi-, 2. Di-. a prefix denoting through; also, between, apart, asunder, across. Before a vowel dia-becomes di-; as, diactinic; dielectric, etc. Origin: [Gr. di`s-twice; akin to two, L. bis twice. See Two, and cf. Bi-, Dia-.
Lots of words have a prefix, and it's sometimes easier to figure out the meaning of those words if you know the meaning of the prefix. For example, the super- means above or over; hypo- and infra- mean under.. Prefix itself has a prefix: pre-, which means before..