一重継ぎ[hitoetsugi] sheep bend (knot)
引継ぐ[hikitsugu] to take over
継合せる[tsugiawaseru] to join together
継接ぎ[tsugihagi] patching (and darning)
継足す[tsugitasu] to extend (e.g. a house)

継ぐ[tsugu] to succeed (someone in a business or inheritance)
継嗣[keishi] successor
継っ子[keishi] stepchild
継承[keishou] inheritance
継承者[keishousha] successor