An Etymological Dictionary of Astronomy and Astrophysics

1. To acquire by force of arms; to overcome by force.
   

   2. Successfully overcome an obstacle or weakness.

Etymology (EN): From O.Fr. conquerre “conquer, defeat, vanquish,” from V.L. *conquaerere, L. conquirere “to search for, procure by effort,” from → com- + quaerere “to seek, gain.”

Etymology (PE): Hanânidan, from Av. hanānī, han- “to conquer;” cf. Skt. sanⁱ “to win, gain;”
Gk. hanutein “to complete, accomplish;” OHG sinnan “to strive after something” (Cheung 2007).