What is the meaning of Quellen?

to well (issue forth, as water from the earth)

to swell, to soak (expand by soaking up a liquid)

to torment, to hurt, to torture

To kill or slay; to inflict death upon someone.

To quell or suppress; to end afflictions or threats.

To verbally insult or demean.

To ruin, to lay waste to.

Source: wiktionary.org