出典:Wiktionary
From Middle English belast, belest, bilast (“charged with an obligation, bound”), past participle of Middle English belasten, bilasten, from 古期英語 behlæstan (“to load a ship”), equivalent to be- + last. Cognate with Dutch belasten (“to charge, load, burden, tax”), German belasten (“to burden, charge, load, strain”).
belast (comparative more belast, superlative most belast)