acrostatic

adjective

ac·​ro·​stat·​ic ˌa-krə-ˈsta-tik 

of Indo-European noun inflection

: retaining accent on the root throughout the paradigm (see paradigm sense 2) with zero-grade ablaut of the stem and ending

Word History

Etymology

borrowed from German akrostatisch, from akro- acro- + -statisch -static

First Known Use

1978, in the meaning defined above