nasturtium: [17] The nasturtium plant has a peppery taste (its immature flower buds are often used as an alternative to capers), and tradition has it that the Romans named it nasturtium because its pungency made them pucker up their noses. According to this theory, the word is an alteration of an earlier *nāsitortium, which would have been a compound formed from nāsus ‘nose’ and tort-, the past participle stem of torquēre ‘twist’ (source of English torture). [nasturtium etymology, nasturtium origin, 英语词源]