What is the meaning of Stíga?

to step, to stride

to step, to take a step [intransitive or with accusative]

to rise, to increase

to step, to tread

to step on, to set foot on [with accusative]

inflection of stígr:

1. indefinite accusative plural
2. indefinite genitive plural

indefinite accusative plural

indefinite genitive plural

Source: wiktionary.org