Whimper (verb)

1. To make a low, weak, or trembling sound, typically as a result of pain, fear, or unhappiness.
2. To speak in a low, weak, or trembling voice, typically as a result of pain, fear, or unhappiness.

Origin:

From the old english word "hwimperian" meaning "to make a sound like a dog".

Examples:

1. The puppy whimpered as it was left alone.
2. The baby whimpered in her sleep.
3. She whimpered in pain as the doctor examined her.
4. He whimpered a feeble apology.
5. The patient whimpered in fear as the nurse gave her the injection.