sympathetic sorrow or compassion for the suffering, distress, or unhappiness of another
something to be regretted; a source of disappointment
It's a pity you can't go
for pity's sake
used to express exasperation or as an urgent appeal
have/take pity on
to have sympathy for or show mercy towards (somebody or something)
more's the pity
used to express regret or disappointment
[Middle English pite via French from Latin pietas piety, pity]