Yawn vs Yawningly - What's the difference?

As a verb yawn

is to open the mouth widely and take a long, rather deep breath, often because one is tired and sometimes accompanied by pandiculation.

is the action of ; opening the mouth widely and taking a long, rather deep breath, often because one is tired.

in a yawning way; accompanied by yawns.

(wikipedia yawn)

(en verb)

To open the mouth widely and take a long, rather deep breath, often because one is tired and sometimes accompanied by pandiculation.

I could see my students yawning , so I knew the lesson was boring them.

* Trumbull

And while above he spends his breath, / The yawning audience nod beneath.

To present a wide opening.

The canyon yawns as it has done for millions of years, and we stand looking, dumbstruck.

Death yawned before us, and I hit the brakes.

* Shakespeare

'Tis now the very witching time of night, / When churchyards yawn .

To open the mouth, or to gape, through surprise or bewilderment.

(Shakespeare)

To be eager; to desire to swallow anything; to express desire by yawning.

to yawn for fat livings

* Landor

one long, yawning gaze

(en noun)

The action of ; opening the mouth widely and taking a long, rather deep breath, often because one is tired.

A particularly boring event.

The slideshow we sat through was such a yawn . I was glad when it finished.

* multicolour yawn * Technicolor yawn * yawnfest

(en adverb)

In a yawning way; accompanied by yawns.

* She stumbled downstairs and yawningly prepared breakfast.