In obsolete|lang=en terms the difference between unhap and unlap
is that unhap is (obsolete) ill luck; misfortune while unlap is (obsolete) to unfold.
As a noun unhap
is (obsolete) ill luck; misfortune.
As a verb unlap is
(obsolete) to unfold.
unhap
English
Noun
(
-)
(obsolete) Ill luck; misfortune.
The cause of her unhap . — Sir P. Sidney.
(
Webster 1913)