To grieve together with someone, to feel sympathetic pain at another's suffering. In Mark 3:5, Jesus looks at the Pharisees 'grieved at their hardness of heart.' The word captures Jesus's emotional response to their stubborn refusal to rejoice that a man's withered hand was about to be healed on the Sabbath. This is not anger alone but sorrowful pain at the spiritual blindness that prevents them from celebrating mercy. The 'shared grief' element suggests Jesus suffers with them over their own condition.