English should

← Old English scolde (inherited)

← Old English sculan (mention)

← English shall (cognate)

← English shild (link)

← English shildy (link)

← Middle English scholde (inherited)

→ English want (mention)

→ English must (mention)

→ English must (mention)

→ English shouldn't (suffix)

→ English should've (suffix)

→ English shud (mention)

→ English Skuld (cognate)

→ English shoulden (suffix)

→ Old English scyld (link)

→ German sollen (mention)

→ Westrobothnian wahl (link)

→ Alemannic German solle (cognate)