←
Proto-Germanic *ahtōu (inherited)←
Proto-West Germanic *ahtō (inherited)←
Proto-Indo-European *oḱtṓw (inherited)←
Old Frisian achta (inherited)→
English eight (cognate)→
North Frisian ach (cognate)→
North Frisian aacht (cognate)→
North Frisian oocht (cognate)→
Saterland Frisian oachte (cognate)