Hermann Diels argued in 1914 that it rather derived from χύμα, used to describe metallic objects formed by casting.
hˈɜːmən dˈiːlz ˈɑːɹɡjuːd ɪn nˈaɪntiːnhˈʌndɹɪd fˈoːɹtiːn ðˌɐɾɪt ɹˈæðɚ dᵻɹˈaɪvd fɹʌm tʃˈaɪˈʊpsɪlənmjˈuːˈælfə, jˈuːzd tə dᵻskɹˈaɪb mətˈælɪk ˈɑːbdʒɛkts fˈɔːɹmd baɪ kˈæstɪŋ.