affix
verbUK /əˈfɪks/
US /əˈfɪks/
To stick or attach something onto another thing.
Please affix a stamp to the envelope before mailing it.
OTHER MEANINGS
2. A small word part added to the beginning or end of a word to change its meaning.
In 'unhappy,' the prefix 'un-' is an affix.
3. To add a signature or seal to a document.
Both parties will affix their signatures to the contract.
4. To place or fix something in a position.
She affixed the poster to the wall with tape.