King James Bible
King James Version (KJV)

From erao (to love); beloved; Erastus, a Christian -- Erastus.
1. the companion of the apostle Paul, Acts 19:22;
2. the city treasurer of Corinth, Romans 16:23. Which of the two is meant in 2 Timothy 4:20 cannot be determined.
STRONGS NT 2037a: ἐραυνάωἐραυνάω, a later and especially Alexandrian (cf. Sturz, Dial. Maced. et Alex., p. 117) form for ἐρευνάω, which see. Cf. Tdf. edition 7 min. Proleg., p. 37; (the major edition, p. 34; especially ed. 8 Proleg., p. 81f); Buttmann, 58 (50).