御食い初め[okuizome] weaning ceremony
為初め[shisome] outset
為初める[shisomeru] to begin to do
仮初[karisome] temporary
業界初[gyoukaihatsu] the industry's first ...

月初め[tsukihajime] beginning of month
最初[saisho] beginning
初めに[hajimeni] to begin with (used as an introduction)
初めは[hajimeha] at first
手初めに[tehajimeni] at first

為せる[saseru] to make (someone) do
其の為[sonotame] hence
の為に[notameni] for the sake of
スパイ行為[supaikoui] espionage
為め[tame] good

為さる[nasaru] to do
為しおえる[nashioeru] to accomplish
為しおわる[nashiowaru] to finish
為す[nasu] to build up
為て遣る[shiteyaru] to do for (someone)