to feel sad; to feel unwell; (of life) to be difficult
难 · 10 strokes
Simplified from 難. Phonosemantic compound. 隹 represents the meaning and 堇 represents the sound. The character is based on the original meaning "type of bird", which is unrelated to the modern meaning.
过 · 6 strokes
Simplified form of 過. Phonosemantic compound. 辶 represents the meaning and 咼 represents the sound. The 咼 component was simplified to 寸.