| 词汇 | octopus |
| 词根词缀 | 词源： 1758, genus name of a type of eight-armed cephalopod mollusks, from Gk. oktopous "eight-footed," from okto "eight" (see eight) + pous "foot." Proper plural is octopodes, though octopuses probably works better in English. Octopi is from mistaken assumption that -us is the L. noun ending that takes -i in plural. |
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