This paper explores the link between age of (L1 and L2) acquisition and language dominance in bilingual populations. The Age of acquisition (AoA) factor defines which of a bilingual’s two languages is prominent and to what extent, and, along with age of first language (L1) debilitation, it may be linked to dominance shifts from the L1 to the L2. In turn, dominance and chronological age, separately and in relation to lexical frequency, forecast naming task performance.