The adjective abbreviated and the verb abbreviate both come from the noun abbreviation, with its Latin root, abbreviare, "make brief," from ad-, "to," and breviare, "shorten." Definitions of abbreviated.
Something that's abbreviated is shortened or condensed. ... The adjective abbreviated and the verb abbreviate both come from the noun abbreviation, with its Latin root, abbreviare, "make brief," from ad-, "to," and breviare, "shorten."
Autistic children sometimes can't understand as well or as fast as "normal" children, so they may need more explanation or a simpler form of communication.