Lexical Definition

‎ἄρκτος‎ árktos (ark'-tos) bear G:N-F
probably from ‎ἀρκέω‎

bear.

Usage: 8 forms in 13 verses
Form Translated As     In Verse(s)
ἄρκου a bear’s Rev.13.2
αρκόσ a bear LXX.Lam.3.10
άρκω to a bear LXX.Dan.7.5
άρκτου bear LXX.1Sam.17.37
άρκτοσ bear LXX.1Sam.17.34LXX.Isa.11.7
άρκτον bear LXX.1Sam.17.36
άρκοσ a bear LXX.2Sam.17.8LXX.Isa.59.11LXX.Hos.13.8LXX.Amos.5.19
άρκοι bears LXX.Judg.1.35LXX.2Kgs.2.24

Abbott-Smith

ἄρκος (Rec. (cl.) ἅρκιος), [in LXX for דֹּב;] -ου, ὁ, ἡ,
a bear: Re 13:2. (This form is also found in late Inscr.; MM, s.v.)†

Abbott-Smith References

Book Refs
Revelation 13:2

Liddell-Scott-Jones

ἄρκτος, ,

bear, especially Ursus arctos, brown bear, [Refs 8th c.BC+]: the instances of the masculine are uncertain [Refs 4th c.BC+], the feminine being used even when both sexes are included, [Refs]

__2 Ἄρκτος, , the constellation Ursa Major, Ἄρκτον θ᾽, ἣν καὶ Ἄμαξαν ἐπίκλησιν καλέουσιν[Refs 8th c.BC+]: in plural, the Greater and Lesser Bears, [Refs 4th c.BC+]; . μικρά, μεγάλη, [Refs 1st c.BC+]
__3 the north, πρὸς ἄρκτον τετραμμένος[Refs 5th c.BC+]
__3.b ἑτέρα . the south pole, [Refs 4th c.BC+]
__II ἄρκτος, , at Athens a girl appointed to the service of Artemis Brauronia or Ἀρχηγέτις, [Refs 5th c.BC+]
__III a kind of crab, probably Scyllarus arctus, [Refs 4th c.BC+]
__IV ἄρκτου δένδρον, ={ἀκτῆ}, Ps.-[Refs 1st c.AD+]. (Cf. Sanskrit ṛk[snull]as, Latin ursus, etc.)