Perpetual Dividend: This term could be used to describe a company that always pays dividends to its owners without stopping. It could also mean a “perpetual” payment in the Gordon Growth Model, which is a way to figure out how much a stock is worth based on the idea that profits grow at the same rate forever.
Accumulative Dividend: This word isn’t always used, but if it is, it could mean that rewards that aren’t paid out in a certain time period are saved up and have to be paid out later. This is similar to how “cumulative” preferred stock works. If a company misses a dividend payment, the money builds up and is due to the owners.