attach

Unlike most roots on Wordiyo, attach is not a classical Latin or Greek root — it is a Germanic one that traveled through French. It goes back to Frankish *stakkijan, 'to fix with a stake,' the same family as English stake and stick. Picture driving a wooden stake into the ground to pin something down: that is the original image of attaching.

Old French turned this into atachier, 'to fasten or fix in place,' and English borrowed it as attach. From the bare verb a small, very regular family grew:

- attach (fasten one thing to another)
- attached (joined; also fond of, since affection 'fastens' you to someone)
- attachment (the thing fastened — an email attachment — or the bond itself)
- de- (off) + tach → detach (unfasten, take off)
- detached (separated; or emotionally 'unfastened,' uninvolved)

The big surprise in this family is attack. It came from a sister form of the same French word, attaquer, which first meant 'to fasten oneself onto' an enemy — to grab hold and engage. Over time the 'grabbing hold' faded and the hostility took over, leaving today's meaning, 'to assault.' So attach and attack are not lookalikes that happen to share four letters: they are the same word split into a peaceful twin (join) and an aggressive twin (assault).

The pattern to remember: every attach-word is about whether two things are stuck together. attach and attachment stick them on; detach pulls them apart; attack is the violent version of grabbing on.