leap vs overleap

leap is a noun but overleap is not a noun.

Word	Noun	Adjective	Verb	Adverb
leap	Yes	No	Yes	No
overleap	No	No	Yes	No

As verbs, overleap is a hyponym of leap; that is, overleap is a word with a more specific, narrower meaning than leap:

leap (noun)	overleap (noun)
a light, self-propelled movement upwards or forwards
the distance leaped (or to be leaped)
an abrupt transition
a sudden and decisive increase

leap (verb)	overleap (verb)
pass abruptly from one state or topic to another	leave undone or leave out
move forward by leaps and bounds	jump across or leap over (an obstacle)
cause to jump or leap	defeat (oneself) by going too far
jump down from an elevated point