出典:Wiktionary
From Middle English stoteren (compare also participle Middle English staterand (“staggering; tottering; stumbling”)), a frequentative form of Middle English stoten (“to stumble”), related to Dutch stoten (“to push; bump; butt; stumble against”), German stoßen (“to push; butt; knock; bump”), Icelandic stauta (“to struggle through; pound; grind”), equivalent to stut + -er (frequentative suffix).