1. One and a half

Encyclopedia: Sesqui-

• passivist
• passivity
• passkey
• Passover
• Passover supper
• passport
• password
• passé
• passé-partout
• passée
• past
• past master
• past participle
• past perfect
• past perfect tense
• past progressive
• past progressive tense
• past tense
• past times
• pasta
• pasta salad
• pasta sauce
• paste
• paste-up
• pasteboard