G4289
πρόθυμος
eager
πρόθυμος, -ον [in LXX: 1Ch.28:21, 2Ch.29:31 (נָדִיב), Hab.1:8 (חוּשׁ), al. ;] willing, ready: Mat.26:41, Mrk.14:38; neut., τὸ π. = ἡ προθυμία (Thuc., al., 3Ma.5:26), οὕτως τὸ κατ᾽ ἐμὲ (= cl. τὸ ἐμὸν) π., Rom.1:15 (but see ICC, in l).† (AS)
The KJV translates G4289 in the following manner:
ready (4x), willing (2x)
Full Thayer's lexicon entry
πρόθυμος — próthymos
πρόθυμος, πρόθυμον (πρό and θυμός), from (Sophocles and) Herodotus down, ready, willing: Mat 26:41; Mar 14:38; neuter τό πρόθυμον, equivalent to ἡ προθυμία: Rom 1:15, as in Thucydides 3, 82; Plato, legg. 9, p. 859 b.; Euripides, Med. verse 178; Josephus, Antiquities 4, 8, 13; Herodian, 8, 3, 15 (6 edition, Bekker) (on which cf. Irmisch); 3Ma 5:26.
3 occurrences
Matthew (1), Mark (1), Romans (1)