doubtless

					
doubtless (English)
├── -less (English)
│   └── -leas (Old English (ca. 450-1100))
│       └── leas (Old English (ca. 450-1100))
└── doubt (English)
    ├── doute (Middle English (1100-1500))
    │   └── doute (Old French (842-ca. 1400))
    └── douten (Middle English (1100-1500))
        └── douter (Anglo-Norman)
            └── douter (Old French (842-ca. 1400))
                └── dubitare (Latin)