出典:Wiktionary
From way + lay, likely a calque of Middle Dutch wegelagen (“besetting of ways, lying in wait with evil または hostile intent along public ways”). Compare Middle Low German wegelagen, German wegelagern (“to waylay; rob”).
waylay (third-person singular simple present waylays, present participle waylaying, simple past and past participle waylaid or (一般的ではない用法) waylayed)