waveform (English)
├── form (English)
│ └── forme (Middle English (1100-1500))
│ └── forme (Old French (842-ca. 1400))
│ └── forma (Latin)
│ └── μόρφα (Ancient Greek (to 1453))
└── wave (English)
└── waven (Middle English (1100-1500))
└── wafian (Old English (ca. 450-1100))
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