Inkatha rhymes with:
katha, atha, katha, agatha, aletha, anantha, aretha, atha, bartha, bertha, bolitho, botha, calantha, cleantha, cliantha, diantha, eartha, hertha, hiawatha, hyacintha, iantha, jacintha, juditha, katha, letha, martha, mccartha, mintha, murtha, naphtha, philantha, ramtha, samantha, tabitha, tregurtha
Inkatha sounds like:
immunized, incata, incest, inched, incised, incite, incited, inequity, inexact, ingest, ingested, ingot, iniquity, inject, injected, inkjet, inquest, insect, inset, inside, insight, insist, insisted, instead, institut, institute, instituted, instituto