grike or gryke /grīk/

1. A fissure in limestone rock formed or widened by the dissolvent effect of rain (geology)
2. A deep valley, ravine (dialect)

• humdrum
• humdrums
• humdudgeon
• humdudgeons
• Humean
• humect
• humectant
• humectants
• humectate
• humectation
• humectations
• humected
• humecting
• humective
• humects
• humefy
• humeral
• humerals
• humeral veil
• humeral veils
• humeri
• humerus
• humf
• humfed
• humfing