trigram /trīˈgram/

1. An inscription of three letters
2. A figure of three lines

trigrammatˈic or trigrammˈic adjective

• achaenocarp
• achaenocarps
• achage
• achages
• Achaian
• a chapter of accidents
• achar
• acharné
• achars
• acharya
• acharyas
• achates
• Achates
• ache
• ached
• achene
• achenes
• achenia
• achenial
• achenium
• acheniums
• Achernar
• Acheron
• Acherontic
• Acherontis pabulum