云う[yuu] to say
云云[unnun] and so on
幾千と云う人[ikusentoiuhito] thousands of people

云為[uni] sayings and doings
云爾[unji] such as

謹啓[kinkei] Dear Sir or Madam
啓く[hiraku] to enlighten
啓示[keiji] revelation (i.e. divine revelation)
啓発[keihatsu] enlightenment
啓蒙[keimou] enlightenment

啓蟄[keichitsu] "awakening of insects" solar term (approx. Mar. 6, the day on which hibernating insects are said to come out of the ground)
天啓[tenkei] (divine) revelation
拝啓[haikei] Dear (so and so)
啓上[keijou] speaking respectfully
啓迪[keiteki] edification

あっと言う間に[attoiumani] just like that
からと言って[karatoitte] while it may be true that
斯う言う[kouiu] such
して言えば[shiteieba] if I must say (choose)
ずばずば言う[zubazubaiu] to speak one's mind

そうかと言って[soukatoitte] but still
だからと言って[dakaratoitte] while it may be true that
と言うのは[toiunoha] means
と言う物[toiumono] something like ...
とも言う[tomoiu] also called

院宣[inzen] imperial command (decree)
共同宣言[kyoudousengen] joint declaration
口宣[kousen] oral statement
宣べる[noberu] to state
宣教[senkyou] religious mission

宣教師[senkyoushi] missionary
宣言[sengen] declaration
宣言発表[sengenhappyou] declaration
宣告[senkoku] sentence
宣誓[sensei] oath

嘸かし[sazokashi] certainly

嘸や[sazoya] surely

曰く[iwaku] pretext
曰く付き[iwakutsuki] with an interesting history (story)

曰く言い難し[iwakuiigatashi] It is hard to explain
曰う[notamau] to say