doldrums /dolˈdrəmz/

1. Those parts of the ocean near the equator where calms and baffling winds prevail (nautical)
2. A state of inactivity or stagnation
3. Low spirits

• orthogenesis
• orthogenesist
• orthogenesists
• orthogenetic
• orthogenetically
• orthogenic
• orthogenics
• orthognathic
• orthognathism
• orthognathisms
• orthognathous
• orthogonal
• orthogonality
• orthogonally
• orthogonal projection
• orthograph
• orthographer
• orthographers
• orthographic
• playtimes
• play to the gallery
• play truant
• play up
• play upon
• play upon words