Extended Strong's Greek Lexicon (Abbott-Smith based)
proconsul
Usage: ἀνθύπατος -ου, ὁ (ἀντί, ὕπατος, altern. for ὑπέρτατος), supreme, a consul, one acting in place of a consul, a proconsul, the administrator of a senatorial province (cf. ἡγεμών, and see MM, VGT, 44): Act.13:7-8, 12 18:12 19:38.† (AS)