epact /ēˈpakt/

1. The moon's age at the beginning of the year
2. The excess of the calendar month or solar year over the lunar

• gas-tight
• gasting
• gastness
• gastnesse
• gastnesses
• gastr-
• gastraea
• gastraeas
• gastraeum
• gastraeums
• gastralgia
• gastralgias
• gas trap
• gas traps
• gastrectomies
• gastrectomy
• gastric
• gastric balloon
• gastric balloons
• gastric band
• gastric bands
• gastric fever
• gastric flu
• gastric juice
• gastric juices