frontiersman (English)
├── frontier (English)
│ └── fronter (Old French (842-ca. 1400))
│ └── front (Old French (842-ca. 1400))
└── man (English)
├── man (Middle English (1100-1500))
│ └── mann (Old English (ca. 450-1100))
└── mannen (Middle English (1100-1500))
└── mannian (Old English (ca. 450-1100))
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