Ikebana comes from the term, "living flowers." According to Wikipedia, "Ikebana" is from the Japanese ikeru (生ける?, "keep alive, arrange flowers, living") and hana (花?, "flower"). Possible translations include "giving life to flowers" and "arranging flowers".
Ikenobo is the oldest Ikebana school. There are several thousand schools; I find that a classic Ikenobo arrangement is recognizable by the centrality of the materials in the container. You will find an interesting commentary on learning in the Ikenobo school in the late Sandra Lynn's blog here.
Until next time.