guaiacum /gwīˈə-kəm/

1. Any of a family of tropical American trees of the genus Guaiacum, some yielding lignum vitae
2. (also guaiac) their greenish resin, used in medicine

• sackbut
• sackbuts
• sackcloth
• sackcloths
• sack-doudling
• sack dress
• sacked
• sacker
• sackers
• sackful
• sackfuls
• sacking
• sackings
• sackless
• sacklike
• sack-posset
• sack-possets
• sack race
• sack races
• sacks
• sack tree
• sack trees
• sacless
• squamose
• squamosities