Premorse: Having the end abruptly truncated, as if bitten or broken off.

e.g.

“As I looked over the water, I saw the isles rapidly wasting away, the
sea nibbling voraciously at the continent, the springing arch of a hill
suddenly interrupted, as at Point Alderton — what botanists might call
premorse, — showing, by its curve against the sky, how much space it
must have occupied, where now was water only.”
Henry David Thoreau; Cape Cod; 1865.

It’s already an adjective as premorse, whereas if you decapitate it you end up with remorse, a noun that’s a full three letters short of its adjective form, remorseful. English is so fucked up.

So why then when I google premorseful I come up with only a few semi-relevant hits? Are people really that smart?

Anyway, all of this came to me when I woke up and looked at my bedside notebook where I had written:

Chirp chirp, premorseful sound of a morning that could have been. But midnight till dawn is the Golden Hour, when the best work gets done.

Makes sense to me, but grammatically incorrect. Oh well.