Similar to G4321 but focused specifically on additional financial outlay. The Good Samaritan in Luke 10:35 tells the innkeeper that whatever additional expense is incurred caring for the wounded man, he will repay on his return. The verb captures costs beyond the initial two denarii—any extra spending required will be covered. It demonstrates the Samaritan's open-ended commitment: not just initial help but willingness to cover all additional expenses, however much they might be.