ecumenism (English)
├── -ism (English)
└── ecumene (English)
└── oecumenicus (Latin)
├── οἰκουμένη (Ancient Greek (to 1453))
│ └── οἰκέω (Ancient Greek (to 1453))
│ └── οἶκος (Ancient Greek (to 1453))
│ └── ϝοῖκος (Ancient Greek (to 1453))
└── οἰκουμενικός (Ancient Greek (to 1453))
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