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polyp [polyp 词源字典]: polyp: [16] A polyp is etymologically a ‘manyfooted’ creature. The word originally signified ‘octopus’, but in the 18th century was broadened out into a general term for marine invertebrates with tentacles, such as hydras and sea anemones. It comes via French polype and Latin polypus from Greek polúpous ‘cuttlefish’, a compound formed from pólus ‘much, many’ and poús ‘foot’ (source of English pew and podium and related to English foot).

The metaphorical application of the word to a tumour growing from mucous membrane (an allusion to its tentacle-like outgrowths) originated in Greek. Greek pólus (a distant relative of English full and plural) is of course the starting point of many English poly- words, all with the underlying notion of ‘several’ – among them polyglot [17] (etymologically ‘many tongues’), polygon [16], polysyllable [16], and polytechnic [19].

And its plural, polloí ‘many’, is the origin of English hoi polloi [19], literally ‘the many’.
=> foot, full, hoi polloi, pedal, plural, plus, polygon[polyp etymology, polyp origin, 英语词源]
polyp (n.): c. 1400, "nasal tumor," from Middle French polype and directly from Latin polypus "cuttlefish," also "nasal tumor," from Greek (Doric, Aeolic) polypos "octopus, cuttlefish," from polys "many" (see poly-) + pous "foot," from PIE root *ped- (1) "a foot" (see foot (n.)). Etymological sense revived 1742 as a name for hydras and sea anemones (earlier polypus, early 16c.). The Latin word is the source of French poulpe "octopus."
ozaena: " Medicine . Originally: an ulcer of the nose (or, rarely, other part of the body), especially when accompanied by a fetid discharge; any of various conditions characterized by the presence of such a lesion. Later: specifically a chronic disease of the nose characterized by atrophy of the nasal mucosa and bone, with a thick secretion that forms dry, extremely fetid crusts, often associated with the presence of bacteria of the genus Klebsiella", Late Middle English; earliest use found in Guy de Chauliac's Grande Chirurgie. From classical Latin ozaena (also ozēna) a fetid polypus in the nose, a strong-smelling marine polyp (Pliny) from Hellenistic Greek ὄζαινα from ancient Greek ὄζειν to smell + -αινα, suffix forming nouns.
multiped: "An animal with many feet (now chiefly historical and poetic )", Early 17th century; earliest use found in Philemon Holland (1552–1637), translator. From classical Latin multipeda (also multiped-, multipēs) a small creature with many feet or legs from multi- + pēs foot, after ancient Greek πολύπους polypus.