sterile: [16] Sterile is a word of ancient ancestry, which goes right back to the prehistoric Indo- European base *ster- (source also of Greek stériphos and Gothic stairō ‘infertile’). The Latin descendant of the base was sterilis, acquired by English via French stérile.
sterile (adj.)
mid-15c., "barren," from Middle French stérile "not producing fruit," from Latin sterilis "barren, unproductive, unfruitful; unrequited; unprofitable," from PIE *ster- (1) "stiff, rigid, firm, strong" (see stereo-). Also see torpor. Originally in English with reference to soil; of persons (chiefly females), from 1530s. The sense of "sterilized, free from living germs" is first recorded 1877.
例文
1. Too much time has been wasted in sterile debate.
新味のない議論に時間を費やしすぎている。
2.Urine is sterile .
尿は無菌である。
3.George was sterile .
ジョージには出産能力がない。
4.The room felt cold and sterile .
その部屋は陰気で怒っていない。
5.This top fits over the bottle and keeps the teat sterile .