Definition of the word blend in

The expression "blend in" is a phrasal verb that combines the use of a verb (blend) with a preposition (in) to create a new meaning. Its origin can be traced back to the mid-20th century, though the components of the phrase have been in use for much longer. The verb "blend" itself has roots in the Old Norse "bleggja," meaning "mix" or "combine." This word is thought to have entered the English language in the 14th century, when Viking invasions brought Norse vocabulary to England. The preposition "in" has been a staple of the English language since the Old English period, and its meaning has evolved over time. Originally, "in" denoted both a location ("within"), as well as the introduction of something into a substance ("in"). This dual meaning is still present in modern English, as evident from the saying "in with the new" to mean "introduced." As for the phrase "blend in," the use of "in" in this context likely comes from the meaning of enclosure and infiltration. When you "blend in," you are trying to fit in with your surroundings, avoiding attention, and distinguishing yourself from other elements. In this sense, the preposition "in" signifies the act of being encompassed and accepted into a situation or environment. Taken together, "blend in" connotes the action of merging with surroundings and joining them harmoniously, thereby making oneself unperceived or inconspicuous. Its usage has gained widespread popularity due to its simplicity, versatility, and ease of understanding, making it a commonly used idiom in modern-day English.