Dutch tachtig

← Middle Dutch tachtich (inherited)

← Proto-Germanic *ahtōutēhundą (inherited)

← Old Dutch *antahtoda (inherited)

← Old Dutch *ahtodig (mention)

← Old Dutch *antahtodig (mention)

→ English eighty (cognate)

→ Old English hund- (cognate)

→ Dutch achtentachtig (compound)

→ Dutch tachtigjarig (affix)

→ Pennsylvania German achtzich (cognate)