how come: Idiom Meaning and Origin

What does ‘how come’ mean?

The idiom how come is used to ask about the reason or cause of something in a more informal and familiar way. It is commonly used in spoken English.

Idiom Explorer

Decoding "How Come"

The idiom "how come" is a commonly used phrase in American English that is primarily used to express surprise or curiosity regarding a particular situation or outcome. It is often used in questions and is closely related to the phrase "why is it that."

While its origin is not well-documented, "how come" is believed to have emerged in the early 19th century in the United States. It is commonly associated with American English and is less commonly used in other varieties of English.

"How come" is used in everyday speech and informal writing, but it is not considered appropriate in formal or academic contexts. It is commonly used in casual conversations among friends, family, and peers.

The idioms "how so", "how are you", "for reasons", and "how goes it" are all related to the phrase "how come" in different ways.

"How so" is an idiomatic expression used to seek clarification or further explanation. It is often used when someone wants to understand the reasoning or justification behind a statement or claim. For example, one might ask, "You said the party was canceled. How so?" to inquire about the reasons behind the cancellation.

"How are you" is a common greeting in English, and while it may not seem directly related to "how come," it shares a similar structure and usage. Both phrases involve the use of the word "how" to inquire about a particular state or situation. While "how come" is used to express surprise or curiosity, "how are you" is used to inquire about someone's well-being or current state. Despite their differences in meaning, the shared structure makes them related idiomatic expressions.

"For reasons" is a phrase used to introduce an explanation or justification for a particular action or decision. It is often used to provide a concise summary of the factors that led to a certain outcome. While "how come" is used to inquire about the reasons behind a situation, "for reasons" is used to present those reasons in a straightforward manner.

"How goes it" is an informal greeting used to ask about someone's general well-being or how things are currently progressing. While it may not share the exact meaning of "how come," it is related in the sense that both phrases involve the use of "how" to inquire about a particular state or situation. "How goes it" can be seen as a more light-hearted and informal version of "how are you."

Overall, the idiomatic expression "how come" is a commonly used phrase in American English to express surprise or curiosity. Its origin dates back to the early 19th century, and it is primarily used in informal conversations. While it may not adhere to strict grammatical rules, its usage is widely accepted in informal contexts. The related idioms "how so", "how are you", "for reasons", and "how goes it" provide variations of the same structure and usage, further enriching the language and allowing for more expressive communication.

Example usage

Examples of how the idiom *how come* can be used in a sentence:

  1. *How come* you are always late to work?

  2. I don't understand *how come* she didn't receive the invitation.

  3. *How come* we didn't win the game, even though we played well?

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