This is the 11523rd most frequent German word.
steffen
"Steffen" is not a standard German verb; it is typically a proper noun, a male first name.
Here, 'Steffen' is used as a proper noun referring to a person with this name.
Steffen läuft gerne im Park.
Steffen enjoys running in the park.
Here, 'steffen' is a rare or dialectic usage meaning 'to step' but is not standard German.
Der Hund steffen über die Wiese.
The dog steps across the meadow.
Here, 'steffende' is creatively derived, implying shoes that enable strong steps, though this is interpretative.