【析形】形声字。古文字形从金,竟声。古镜多为铜制,所以字从金。 【释义】《说文》:“景也。”段玉裁注:“景者光也,金有光可照物,谓之镜。”本义是铜镜。铜镜大量出现于战国时期的墓葬中,说明战国时期铜镜被较多使用。宋元以后,铜镜逐渐被替代,镜片一般用玻璃制成。所以镜又可表示利用光学原理制造的各种器具,如[望远镜];可引申为明净,如[镜天](澄澈的天空);又表示明察,如[镜见](明察事理的见解);还可表示借鉴,如[镜戒](借鉴他事作为警惕)。 【shape analysis】It is the pictophonetic character.In ancient character the part 金(jīn,metal. Old mirrors were mainly made from bronze)is as an ideogram and 竟(jìng) as a phonetic sign. 【original meaning】 Bronze mirror. Bronze mirrors are mainly found in the tombs of the Warring States, which shows that people used bronze mirrors frequently at that time.