As an adverb and conjunction, "thus," "so," or "in such a way," referring to what follows or precedes in manner, degree, or result. As an adjective or substantive, it means "right," "correct," or "true" (something in accordance with a standard or properly established). In rarer noun usage, denotes what is established or the established state of affairs. The exact meaning depends on context and can range from indicating the manner of an action, agreement with a previous statement, confirmation, or the result of a preceding event.

{# === Technical Reconstruction (Group B) === Only the WorkedDerivation chain renders here now. Legacy fields (proto_sound_correspondences, proto_reconstruction, proto_root_clusters) came from earlier auto-generated work that didn't reflect the current branch-direct methodology — kept in DB but not surfaced in UI. #}