有力

N1 有益 yuueki beneficial, profitable N1 有する yuusuru to own, to be endowed with N1 有望 yuubou good prospects, full of hope, promising N2 ～力 ～ryoku power of ~ N2 有難い arigatai grateful, thankful, appreciated N2 引力 inryoku gravity N2 学力 gakuryoku scholarship, knowledge N2 活力 katsuryoku vitality, energy N2 効力 kouryoku effect, efficacy

N4 有 yuu, u / a.ru possess, have, exist N4 力 ryoku, riki, rii / chikara power, strength, strong