to be palatable, tasty

• Bɔ n-lee beni n-nyaɣisi gari shiri? What is sweeter than honey? [JDG 14:18]
• Ko’ zurili nyaɣisa Stolen water is sweet. [PRO 9:17]
• Guŋkaa nyaɣisim zuɣu chɛ ka Dagbamba ŋahiri di ŋahili ni “Guŋkaa bi mi ni biri kpam nyaɣisa”. Because of the tastiness of kapok-leaf-soup the Dagomba have a proverb about it - Kapok-soup doesn't know that rosella stew is tasty. [DB-Trees.012]

to be pleasant (of anything)

• Yilimiya yila ka ŋmɛm’ guŋgombihi, ka ŋmɛm’ goonjinim’ mini mɔɣilɔnim’ din kumsi nyaɣisa. Sing! Beat the tambourine. Play the sweet lyre and the harp. [PSA 81:2]

to season, make something tasty

• Zun’ shɛli din kpalim la mi bɛ mali li n-niŋdi kpaligu din nyaɣsi ʒɛri pam. The remaining dawadawa seeds they use to make 'maggi' which makes soups very tasty. [DB-Trees.086]