介添え[kaizoe] helper
寄添う[yorisou] to get close
後添い[nochizoi] one's second wife
食品添加物[shokuhintenkabutsu] food additive
申し添える[moushisoeru] to add to what has been said

添う[sou] to meet (one's expectations, etc.)
添加[tenka] addition
添加剤[tenkazai] addition agent
添加物[tenkabutsu] addition
添削[tensaku] correction

草臥れる[kutabireru] to get tired
安臥[anga] quiet rest
横臥[ouga] lying on one's side
臥し転ぶ[fushimarobu] to fall and roll over
臥せる[fuseru] to lie down

臥所[fushido] bed
臥床[gashou] confined to bed
臥薪嘗胆[gashinshoutan] going through thick and thin to attain one's objective
起臥[kiga] daily life
仰臥[gyouga] lie on one's back