Pema: Affection
Pema is warm attachment to a particular person. Years of watching Ishmael grow have made the boy dear to Abraham, and sorrow now travels the same road that fondness opened, since only what is held close can be torn away. Hagar belongs to the household too, so the ache comes doubled, the boy and the servant grieved over in one breath.
Domanassa: Distress of mind
Domanassa is mental pain, the kind that leaves the body untouched. The grief sits in your sight, in how the whole matter looks to Abraham at dawn when he sees the two of them by the tent. Being told not to let it be grievous aims straight at that seeing, since the distress rides on a way of regarding the boy, and a way of regarding can be set down.
Sussūsā: Willingness to hear
Sussūsā is readiness to take in a word one would not have chosen. Abraham is pointed toward Sarah's voice, the voice pressing the very thing he dreads, and told to hear it through instead of arguing it down. Counsel that stings is still counsel, and the ear opens before the understanding does; here it comes through his own household, from the one person he might least want to obey.
Cāga: Letting go
Cāga is the loosening of a grip. Sending the boy off with bread and a skin of water is the outward part; inwardly Abraham gives up a future he had already arranged around his firstborn, the one who was his only son for years. He rises early to do it, which is how letting go usually looks: plain, unhurried, finished before the heart has caught up.
Dāyāda: Heir
Dāyāda names the one who receives what is handed down. Naming the line through Isaac places the inheritance in the keeping of a promise, out of reach of birth order, of Sarah's demand, and of a father's own preference. Abraham can keep his love for the older boy while surrendering his plan for him, and those two turn out to come apart cleanly, which is what makes the morning possible.