Resembling ether in appearance, properties, or nature; light, delicate, and immaterial.
From 'ether' plus the suffix '-like' (similar to or resembling). A straightforward compound formation for describing things with ether-like qualities.
The suffix '-like' is so productive in English that you can attach it to almost anything—'etherlike' shows how we create poetic descriptions by comparing the mysterious to the familiar.
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