The most common and most likely answer to this crossword clue is the 5 letter word MSDOS which also is the latest solution we found used in Universal uClick in 2019.
Ancestor of Windows crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| MSDOS | 100 % | 5 | 
Words with a meaning similar to the clue: Ancestor of Windows
These words may or may not be a possible solution to this crosswords clue.- dos
 - dryopithecine
 - vista
 - abacus
 - dodo
 - half
 - pie
 - race
 - root
 - roots
 - stock
 - stocked
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution