行っていらっしゃい: alternative form of いってらっしゃい (itterasshai)

尺八: shakuhachi, a kind of bamboo flute / (vulgar) fellatio, oral sex

侯爵: marquis, marquess / 公爵: prince, duke / 講釈: lecture

伯爵: earl, count

電磁石: electromagnet

綽号: nickname

尺一: one shaku and one sun

網杓子: a scoop made of a wire mesh

媒酌, 媒妁: matchmaking

see you later (said by a person leaving, a stock phrase required by the Japanese etiquette, lit.: (after) going, I will come back)