Etymograph > Indo-European > Old English > Dictionary > eþþan

V (v-strong-6)

to injure, to harm, to scathe

Source: Kroonen 2013:441, https://en.wiktionary.org/wiki/sceþþan#Old_English
originates from: PGmc *skaþjan- "harm, do wrong" (skaþjan- > skaþþjan > skæþþjan > sċæþþjan > sċeaþþjan > sċieþþjan > sċieþþan) through pgmc-to-oe
(source: Kroonen 2013:441)