Archaean
adj.
"of the earliest geological age," 1872, from Greek arkhaios "ancient," from arkhe "beginning" (see archon).
| 词汇 | Archaean | 
| 词根词缀 | Online Etymology Dictionary Archaean adj. "of the earliest geological age," 1872, from Greek arkhaios "ancient," from arkhe "beginning" (see archon). | 
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