Thigh
The thigh often is a symbol of the phallus. Thus, it represents creative power, procreation, strength.
Common meanings:
Strength and power is perhaps the most straightforward association. The thigh contains some of the body's largest and most powerful muscles, so it naturally symbolizes physical might, vitality, and the capacity for action. Warriors and athletes are often depicted with strong thighs to emphasize their prowess.
Oaths and lineage appear prominently in ancient traditions. In the Hebrew Bible, placing one's hand under another's thigh was a gesture used when swearing solemn oaths—Abraham's servant does this when promising to find a wife for Isaac. This likely connects to the thigh's proximity to the generative organs, linking the oath to one's descendants and bloodline. The thigh thus symbolizes posterity, covenant, and sacred promises.
Sexuality and fertility follow from this anatomical proximity. The thigh can serve as a euphemism or symbolic stand-in for sexuality, reproductive power, and generative force. In art and literature, exposed or emphasized thighs often carry erotic undertones.
Vulnerability is another dimension. Despite their strength, thighs contain major blood vessels, and a wound there can be fatal. Jacob wrestling with the angel and being struck in the thigh represents a wound that marks transformation—strength touched by vulnerability, leaving him changed and limping.
Sovereignty and submission appear in some contexts, as sitting on someone's thigh or being "born upon the knees" indicated adoption or legitimacy in certain ancient cultures.