• 氵(water; liquid)
• 由(from; due to; oil (phonetic))

Oil is a liquid that flows from a natural source.

• 广(roof; cliff)
• 氐(root; base)

Under a roof is the lowest place, which is the bottom of a room.

• 士(student; nobleman)
• 冗(redundant; excessive)

A hard shell outside like armor covering excess wrapping around the kernel within.

• 氵(water; liquid)
• 由(from; due to; oil (phonetic))

Oil is a liquid that flows from a natural source.

• 广(roof; cliff)
• 氐(root; base)

Under a roof is the lowest place, which is the bottom of a room.

• 士(student; nobleman)
• 冗(redundant; excessive)

A hard shell outside like armor covering excess wrapping around the kernel within.