• 疋(foot; leg (sound similar to 'đản'))
• 虫(insect; reptile)

An egg is what reptiles lay, with a round shape like a foot.

• 黃(yellow; ripe grain field)

A mature golden rice plant with its stalk, roots, and heavy drooping grain panicles forms the image of this character.

• 糸(silk thread; filament)
• 龶(coarse undyed thread bundle; top part of thread)

Raw silk that hasn't been dyed suggests the meaning of pure, simple, and basic.

• 疋(foot; leg (sound similar to 'đản'))
• 虫(insect; reptile)

An egg is what reptiles lay, with a round shape like a foot.

• 黃(yellow; ripe grain field)

A mature golden rice plant with its stalk, roots, and heavy drooping grain panicles forms the image of this character.

• 糸(silk thread; filament)
• 龶(coarse undyed thread bundle; top part of thread)

Raw silk that hasn't been dyed suggests the meaning of pure, simple, and basic.