insofar
UK: /ˌɪnsəʊˈfɑː/ | US: /ˌɪnsoʊˈfɑːr/
adv. to the extent or degree that
adv. in such measure or manner
The word "insofar" is a compound of three English morphemes: "in," "so," and "far." It originated in Middle English as a phrase ("in so far") and later merged into a single adverb. The logic is straightforward: "in" (within a scope) + "so" (to such a degree) + "far" (extent or distance) collectively express limitation or qualification ("to the extent that"). Over time, it became a fixed conjunction-like adverb in formal and legal contexts.
The plan is successful insofar as it meets the initial objectives.
Insofar as I understand, the project will proceed next month.
He agreed to help, but only insofar as his schedule allowed.
Insofar as the data suggests, the hypothesis appears valid.
The law applies insofar as the conditions are met.