araneidyoudaoicibaDictYouDict[araneid 词源字典]
"An invertebrate of an order that comprises the spiders", Late 19th century: from modern Latin Araneida (former order name), from aranea 'spider'.[araneid etymology, araneid origin, 英语词源]
sustentaculumyoudaoicibaDictYouDict
"A supporting part or structure; especially the sustentaculum tali; Zoology a short spine present on each tarsus of the fourth pair of legs in many orb-weaving spiders (family Araneidae)", Mid 18th cent.; earliest use found in The Gentleman's Magazine. From post-classical Latin sustentaculum nourishment, food, crutch, prop from classical Latin sustentāre + -culum.