Old English scrifan "assign, prescribe, ordain, decree; impose penance, hear confession; have regard for, care for," apparently originally "to write" (strong, past tense scraf, past participle scrifen), from Proto-Germanic *skriban (source also of Old Saxon scriban, Old Frisian skriva "write; impose penance;" Old Dutch scrivan, Dutch schrijven, German schreiben "to write, draw, paint;" Danish skrifte "confess"), an early borrowing from Latin scribere "to write" (from PIE root *skribh- "to cut"), which in Old English and Scandinavian developed further to "confess, hear confession."
<a href="https://www.etymonline.com/word/shriver">Etymology of shriver by etymonline</a>
Harper, D. (n.d.). Etymology of shriver. Online Etymology Dictionary. Retrieved $(datetime), from https://www.etymonline.com/word/shriver