The term 'salary' has an interesting etymology that traces back to ancient Rome, where the Latin word 'salarium' was associated with salt. In a time when refrigeration was nonexistent, salt played a crucial role in preserving food and facilitating trade, making it a valuable commodity. While Roman soldiers were not paid directly in salt, their allowance was linked to its cost, marking a significant shift in how value was perceived. Over time, 'salarium' evolved to represent a recurring payment, leading to the modern concept of salary. This historical context reveals a different economic system where necessities had intrinsic value, contrasting with today's abstract monetary transactions. The phrase 'worth their salt' further emphasizes the importance of earning one's pay, rooted in this historical significance.