What is the difference between: al-kifl (portion) and an-nasib (share)? And between al-mass (touching/affliction) and al-isabah (striking/befalling)?

The exegetes (scholars of Quranic exegesis) said that "nasib" (share/portion) and "kifl" (share/portion) both mean a share of everything, whether good or bad. Some of them were of the opinion that "kifl" is only used for evil, citing as proof Allah's saying: "Whoever intercedes with a good intercession will have a share (nasib) from it, and whoever intercedes with an evil intercession will have a share (kifl) from it." As for "al-mass" (touch) and "al-isabah" (affliction/strike), some viewed them as having the same meaning, while others differentiated between them by saying that "al-mass" is less than "al-isabah," and that "al-mass" is merely a touch that does not result in a significant effect, whereas "al-isabah" results in a greater effect.