It is chose.
Using a photo editing program such as photo shop, you add something called a "watermark"
Add (something) at the beginning as a prefix or introduction.
Oh, dude, you want a word that means "picked something" and add a letter to "hose"? Alright, how about "chose"? You just slap that "c" in front of "hose" and boom, you've got yourself a new word. Like, easy peasy, right?
twill
prefix means add at the beginning.
I suppose that you think to "vitaminizing".
When you add the suffix -ish to a word, it means that something has characteristics of the root word. For example, stylish means something has style.
opacity
You could add a word at the beginning or the end@!
You can add the letter 'O' to the beginning to make the two-syllable word open.
suffix