Answer:
Possibly the word most commonly said before taking a sip
I am the first you ever saw, what greets you every morning and what goes out in the end.
People in love are often bound to this.
Made of ten but two we make, When assembled others quake, Five apart and we are weak, Five together havoc wreak. What are we?
Used to keep prisoners silent and to make temporary repairs on cars.
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.