“The phrase "blood is thicker than water" means family is more important than anything else.”

The saying "blood is thicker than water" is commonly understood to mean that family ties are inherently stronger and more important than any other relationship. This interpretation suggests that loyalty and obligation to one's relatives should always supersede friendships or other bonds formed by choice. Many people deeply resonate with this sentiment, finding comfort and truth in the idea that familial connections are the most enduring and reliable.

However, the historical evidence suggests a different origin and meaning for this widely quoted proverb. Some scholars and linguists argue that the phrase is actually a shortened and altered version of an older, longer proverb: "The blood of the covenant is thicker than the water of the womb." If this longer version is indeed the original, it dramatically shifts the meaning. "Blood of the covenant" would refer to bonds formed through shared experiences, promises, or even battles – chosen relationships or allegiances. "Water of the womb" would represent the ties of birth. In this context, the proverb would imply that chosen bonds, forged through intentional commitment, are actually stronger and more significant than those created simply by biological relation.

The reason for the common modern belief in the "family first" interpretation likely stems from the widespread adoption of the shortened version of the proverb. Without the full context, the phrase naturally lends itself to the idea that the "blood" shared by family members creates an unbreakable bond. This interpretation aligns with cultural values in many societies that emphasize the importance of kinship and the family unit. Over time, the truncated version became so prevalent that its original, more complex meaning was largely forgotten, leading to the popular and often unchallenged understanding we have today.