incubus /inˈ or ingˈkū-bəs/

1. A devil supposed to assume a male body and have sexual intercourse with women in their sleep (cf succubus)
2. A nightmare
3. Any oppressive person, thing or influence

• risottos
• risp
• risped
• risperidone
• rispetti
• rispetto
• risping
• rispings
• risps
• risque
• risqued
• risques
• risquing
• risqué
• Riss
• Rissian
• rissole
• rissoles
• Risso's dolphin
• risus
• risuses
• risus sardonicus
• rit
• rit.
• Ritalin