Motivated by Group 人 over 彡 (zhěn)

参 ( 參 )

Pron: cān, cēn, sān, sǎn,shēn

Main radical: 厶

Frequency: 507

Meaning: to take part in, to participate, to join, to attend, unequal, varied, irregular

Examples: 参加 (participate), 参军 (join the military), 海参 (hai3 shen1 - sea cocumber)

惨 ( 慘 )

Pron: cǎn

Main radical: 忄

Frequency: 1530

Meaning: sad, pitiful, wretched; cruel

Examples: 悲惨 (miserable, tragic), 惨剧 (tragedy, calmity), 惨遭 (suffer), 凄惨 (miserable)

掺 ( 摻 )

Pron: chān, càn, shǎn, xiān

Main radical: 扌

Frequency: 3308

Meaning: to mix (chān), to grasp (shǎn), delicacy of a woman's hand (xiān)

骖 ( 驂 )

Pron: cān

Main radical: 马

Frequency: 6338

Meaning: outside horses of a team of 4

黪 ( 黲 )

Pron: cǎn

Main radical: 黑

Frequency: 7323

Meaning: grey black