German zweifeln

← German Zweifel (affix)

← German -en (affix)

← Middle High German zwīvelen (inherited)

← Middle High German zwīveln (mention)

← Middle High German zwībelen (mention)

← Old High German zwīfalen (inherited)

← Old High German zwīfalōn (mention)

→ German verzweifelt (prefix)

→ German bezweifeln (prefix)

→ Luxembourgish zweiwelen (cognate)