Abarim Publications' online Biblical Greek Dictionary

αρκεω

• The adjective αρκετος (arketos), meaning sufficient or enough, with the implication of being sufficient to avert collapse (Matthew 6:34, 10:25 and 1 Peter 4:3 only).
• The noun αρκτος (arktos), meaning bear, the both docile but at times wildly fierce animal that was also known as αρκος (arkos), which is identical to a noun meaning defense (see above). This suggests that this formidable mammal was proverbially known for both its latent strength and calm confidence and also for its propensity to defend itself and its young in bloody battle. The Greeks applied their word for bear to the familiar stellar constellation we know as Ursa Major, or Great Bear, then Ursa Minor, Little Bear, and ultimately to the entire arctic north and even the arctic south. Since 42 is the signature number of Egypt (the 42 body parts of Osiris became 42 governmental districts), the story of the two bears who tear up the 42 boys of Bethel, obviously comments on the relationship between the three dominating wisdom traditions in the 6th century BC: that of Hellas, Egypt and the Jews of Persia.
  In our e-book How The Mind Works (free, no tricks), we explain that the mental sphere is self-similar to the biosphere, most basically divided into toe-walkers and flat-footers. The toe-walking super-group comprises all herdlings (sheep, cows, pigs, but also cats and dogs), whereas the flat-foot super-group comprises most burrowers (mice, rabbits, beavers but also apes and thus humans). The toe-walkers are reactionary and follow only their senses, whereas the flat-footers are natural mystics, whose imagination (δοκεω, dokeo, to imagine) tells them more about the greater albeit invisible world than their immediate observations. Bears, though natural members of the dog family, adapted and became flat-footers and cave-dwellers. In the mental arena, these are Greek philosophers, formidable beasts but ultimately rather useless to the shepherds (ποιμην, poimen), whose true dogs (κυων, kuon) form the formal governments of the human herds.
  Note that our English word "bear" comes from the Proto-Indo-European root "bher-", which puzzled scholars divide in two: root "bher-" (1) is thought to mean brown or bright, whereas the much wider attested "bher-" (2) means to bear or carry. Here at Abarim Publications we don't see the need to assume two separate roots, since the bear was evidently indeed known as the "bearer." Our noun occurs in the New Testament in Revelation 13:2 only, where the "feet of the bear" obviously don't refer to furry clumpers but rather to the constitutional basis of a non-belligerent but nevertheless heavily secured society. For more on the two cosmic bears that upheld the canopy of heaven, see our articles on the nouns σπογγος (spoggos), sponge, and μοδιος (modios), the measuring basket beneath which nobody would place a candle (Matthew 5:15).
• Together with the pronoun αυτος (autos), meaning self: the adjective αυταρκης (autarkes), meaning self-sufficient or capable of keeping oneself from structural collapse (Philippians 4:11 only). From this word derives:
  • The noun αυταρκεια (autarkeia), meaning self-sufficiency, the quality of being capable to keep oneself from structural collapse (2 Corinthians 9:8 and 1 Timothy 6:6 only).
• Together with the preposition επι (epi), meaning on or upon: the verb επαρκεω (eparkeo), meaning to add to support or to sustain support (1 Timothy 5:10 and 5:16 only).

κιβωτος