Originis (“ice”) + -fri (“-free”)
Formsisfri(error-unrecognized-form, positive) · -(comparative, error-unrecognized-form) · -(error-unrecognized-form, superlative) · isfrit(error-unrecognized-form, positive) · isfrie(plural, positive) · -(comparative, plural) · -(plural, superlative) · isfrie(error-unrecognized-form, positive)
Source: Wiktionary — CC BY-SA 4.0