Thomas W. Allen, E. E. Sikes, Commentary on the Homeric Hymns

[9] ἄνθεμ̓: not in Homer, who, however, has the adjective “ἀνθεμόεις” of decoration Il. 23.885 “, γ 440, ω” 275. The schol. T on Il. 23.885 derives this from “ἄνθεμα”, quoting Pind. Ol.ii. 72（“χρυσοῦ”): the word first occurs in Pindar.

ὀρειχάλκου: first in Scut. 122, where see Sittl's note. The metal (whether pure copper, or a compound) cannot be identified: it was a mere name to Plato (Critias 114 E) and Aristotle (schol. on Apoll. Arg. 4.973). Strabo (610) calls it “ψευδάργυρον”, i.e. an alloy of silver and copper. Suidas explains by “ὁ διαυγὴς χαλκός, ὁ δόκιμος”. Pliny (H. N. xxxiv. 2) calls it a natural metal no longer to be found, iam tempore effeta tellure. The metal intended by Cic. Off.iii. 23 and other Latin writers is unknown; see Conington on Verg. Aen.xii. 87.The Latin aurichalcum is no doubt due to false etymology.