● pet(=to request, to seek) 요청하다, 찾다, 구하다 1. impetus : im(in의 변형=against) + pet(=to seek) + us n. 힘, 운동량 *ETYMOLOGY : Middle English impetous, from Latin impetus, from impetere, to attack : in-, against + petere , to go towards, seek 2. perpetual : per(=thoroughly) + pet(=to seek) + ual(형용사형 접미어) a. 영구의, 부단한 3. perpetuate : per(=throughly) + pet(=to seek) + u + ate (동사형 접미어) v. 불멸케 하다 Ex : His s..