KJV Dictionary Definition: sad
sad
SAD, a. It is probable this word is from the root of set. I have not found the word is from the root of set. I have not found the word in the English sense, in any other language.
1. Sorrowful; affected with grief; cast down with affliction.
Th' angelic guards ascended, mute and sad.
Sad for their loss, but joyful of our life.
2. Habitually melancholy; gloomy; not gay or cheerful.
See in her cell sad Eloisa spread.
3. Downcast; gloomy; having the external appearance of sorrow; as a sad countenance. Matt. 6.
4. Serious; grave; not gay, light or volatile.
Lady Catherine, a sad and religious woman.
5. Afflictive; calamitous; causing sorrow; as a sad accident; a sad misfortune.
6. Dark colored.
Woad or wade is used by the dyers to lay the foundation of all sad colors.
This sense is, I believe, entirely obsolete.
7. Bad; vexatious; as a sad husband. Colloquial.
8. Heavy; weighty; ponderous.
With that his hand more sad than lump of lead. Obs.
9. Close; firm; cohesive; opposed to light or friable.
Chalky lands are naturally cold and sad. Obs.
The two latter senses indicate that the primary sense is set, fixed.
sadness
SAD'NESS, n.
1. Sorrowfulness; mournfulness; dejection of mind; as grief and sadness at the memory of sin.
2. A melancholy look; gloom of countenance.
Dim sadness did not spare Celestial visages.
3. Seriousness; sedate gravity. Let every thing in a mournful subject have an air of sadness.