"εν-" meaning in Grec

{
  "categories": [
    {
      "kind": "other",
      "name": "Préfixes en grec",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Grec",
      "orig": "grec",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Du grec ancien ἐν, en."
  ],
  "lang": "Grec",
  "lang_code": "el",
  "notes": [
    "Le préfixe εν change de consonne selon le mot auquel il se rattache.",
    "εγ : devant les lettres γ, κ, ξ, χ,",
    "ελ : devant la lettre λ,",
    "εμ : devant les lettres β, π, φ, μ, ψ,",
    "ερ : devant la lettre ρ,",
    "εσ : devant la lettre σ.",
    "en:εν"
  ],
  "pos": "prefix",
  "pos_title": "Préfixe",
  "senses": [
    {
      "glosses": [
        "…"
      ],
      "id": "fr-εν--el-prefix-tJNYlMjO"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ɛn\\"
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "εν-"
}

{
  "categories": [
    "Préfixes en grec",
    "grec"
  ],
  "etymology_texts": [
    "Du grec ancien ἐν, en."
  ],
  "lang": "Grec",
  "lang_code": "el",
  "notes": [
    "Le préfixe εν change de consonne selon le mot auquel il se rattache.",
    "εγ : devant les lettres γ, κ, ξ, χ,",
    "ελ : devant la lettre λ,",
    "εμ : devant les lettres β, π, φ, μ, ψ,",
    "ερ : devant la lettre ρ,",
    "εσ : devant la lettre σ.",
    "en:εν"
  ],
  "pos": "prefix",
  "pos_title": "Préfixe",
  "senses": [
    {
      "glosses": [
        "…"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ɛn\\"
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "εν-"
}