testis /tesˈtis/

1. (a more formal word for) a testicle
2. A rounded body like it

• down-quilt
• down-quilts
• downright
• downrightness
• downrightnesses
• downriver
• downrush
• downrushes
• downs
• downscale
• downscaled
• downscales
• downscaling
• down-setting
• down-settings
• downshift
• downshifted
• downshifter
• downshifters
• downshifting
• downshiftings
• downshifts
• downside
• downsides
• down-sitting