「Erection, quick movement in any direction, and tensed」as EFFORT. Depicts an「erection」in a position of penetration within a「no-longer-integrated foot」filled with potential ENERGY, POWER. It may well be pointed out also that using an erection in a position of penetration within a no-longer-integrated foot clearly describes an abuse of POWER by enslaving girls as sexual meat sacrifices, and, connotes the EFFORT needed by such enslaved young females to please their taskmasters. In fact, it is no wonder that the Chinese have re-written their modern dictionaries, and almost no one is aware any longer of elemental stroke meanings…could a better example be suggested to depict both power and effort? (masters and slaves, respectively).
Still a problem in 2021 (and today, too, whenever you read this):「The issue of 'child marriage,' when girls are forced to marry older men for money, has worsened during the coronavirus crisis. The UN Population Fund says more than 33,000 girls worldwide are forced into wedlock every day. The problem was already serious in Pakistan, but financial burdens caused by the pandemic are putting even more children at risk.」
[ https://www.worldvision.org/child-protection-news-stories/child-marriage-facts 2023-05-14 ]
In the sticky heat of a June day in Juba, South Sudan’s capital in 2024, a girl aged 14 years (still attending elementary school) was sold as a「bride」for a payment of 123 cattle, 120 million South Sudanese pounds (about $44,000 or £33,000) in cash, and a plot of land…she was dubbed「the most expensive bride in South Sudan」in TikTok videos that gained thousands of likes. What a world, what humans do…
[ https://www.theguardian.com/global-development/2024/sep/27/south-sudan-juba-dinka-child-marriage-athiak-dau-riak-customs-brideprice 2024-09-28 ]
「Viewing women as commodities [see 品] was also made customary from Song Dynasty (960 - 1279) forward, both in the suddenly expanded labor market and within relationships. Men could sell their female kin to slavery or prostitution, and frequently did.」
[ https://www.zum.de/whkmla/sp/0910/hersheys/hersheys5.html 2011-04-05 ]
「Bound feet were a mark of beauty that became a prerequisite for finding a husband, as well as an avenue for poorer women to marry into money. Women, their families, and [a husband] took great pride in tiny feet, with the ideal length, called the 'Golden Lotus,' being about 7 cm (2.75 inches) long. …The process was started before the arch of the foot had a chance to develop fully, usually between the ages of 2 and 5. …Bound feet were once considered intensely erotic in Chinese culture. …Qing Dynasty sex manuals listed 48 different ways of playing with women's bound feet.」
[ https://en.wikipedia.org/wiki/Foot_binding 2012-12-17 ]
「In traditional Chinese medicine, there has never been a mental disease called pedophilia (or an equivalent term), or homosexuality, or most of the other so-called sexual variations for that matter. …Children are usually described as natural sexual beings and erotic stimulation and sex-play are seen as beneficial to their healthy development.」
[ https://docx2.com/wp-content/uploads/Are-Any-of-the-Pharaphilias-in-DSM-Mental-Disorders_.pdf 2023-05-14 ]

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: power; force; strength; ability; strenuously
Japanese EDRDG: power, strength, strong, strain, bear up, exert
Unihan extended: power, capability, influence

Used within names (nanori)
じから　･　つとむ