unˈdertone noun

1. A subdued tone of voice, sound, colour, etc
2. A tone felt as if pervading, underlying, or perceptible through others, including (figurative) an emotional tone
3. A difference tone (qv under differ)
4. A low state of body

• spreezed
• spreezes
• spreezing
• sprent
• sprew
• sprews
• sprig
• sprigged
• spriggier
• spriggiest
• sprigging
• spriggy
• spright
• sprighted
• sprightful
• sprightfully
• sprightfulness
• sprightfulnesses
• sprighting
• sprightless
• sprightlier
• sprightliest
• sprightliness
• sprightlinesses
• sprightly