Kanji that hide something away

I decided to take JLPT N2 recently and to prepare for the test I bought the new kanzen master vocabulary for JLPT N2 (新完全マスター 語彙日本語能力試験Ｎ２) book which puts the vocabulary in different groups which make learning vocabulary easier and more fun.

At the same time I put in the vocabulary in Anki for training writing kanji, where I came across the following two kanji that looks similair 穏 and 隠. The first one was used for [おだ]穏やかな and describes a persons strong point for someone who is calm and mild inside. The second one describes what a person is doing which in this case is hiding a secret away ([ひみつ]秘密を[かく]隠す).

The etymology for these two kanji are closely tied together according to the kanji etymology book 漢字源. 穏 shows two hands (爪 and 又) cowering an object 工 which is the original usage of 隠 now written with a cliff on the left side to maybe show something hidden in the mountains. The thing on the left side of 穏 is an object which gives the meaning to hide an object away with the extended meaning hiding one's true feelings and staying calm which is considered good in any social environment. However, there is also another interpretation of 穏 that seems more obvious and easier to remember that the right side shows keep something inside one's heart which is the seed 禾 for losing one's temper.