Starting something with 〜出す
Grammar: Time and Sequence
Appending 出す to the base of a verb (the ます stem) adds the meaning of starting the action of that verb.
〜出す is used actions which are abrupt and non-volitional.
In English, 〜出す may translate as “starting to 〜” or to “〜 out”, depending on the verb.
Kei’ichi must enter the university system to add a record showing Belldandy is enrolled. He only has a brief window of opportunity before Professor Ozawa logs into the system and discovers she isn’t enrolled. The only thing standing in Kei’ichi’s way is the university’s enrollment records password protection. Takagi and Nishikata share an umbrella to walk home after school. Takagi says she completely forgot the term for two people sharing an umbrella. Nishika, with embarrassment, mutters that it’s あいあいがさ. When Takagi asks him to repeat it louder, he keeps quiet in his embarrassment. Nishikata’s embarassment stems from あい being the same pronunciation as 愛Related Grammar
Examples
Figuring out the password with 見つけ出す

Suddenly remembering with 思い出す
