ソク 
かわ がわ そば 
() side
              
がわ (n,suf) (1) side (of something, or taking someone's side), part, (2) (watch) case
そば (n) (1) near, close, beside, vicinity, proximity, besides, while
そっきん (n) close associate, close aide, brains-truster
そくめん (n) side, flank, sidelight, lateral

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Etymologies: 中文字譜 : 説文解字