frumlegir

Could you clarify the context or field for "frumlegir"? It appears to be an Icelandic term, but its exact meaning is not clear without context. Is it used in biology (perhaps embryology or cell-related concepts), politics or law (a term related to proposals or origins), linguistics, or another field? If you’d like, I can draft a concise, neutral wiki-style article once I know the intended sense and audience.