Was heißt »serpens« auf Englisch?

Das Adjektiv »serpens« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Englische Beispielsätze

Mary's dog lay peacefully outside her bedroom door. However, whenever Tom came creeping up to see Mary, who was sleeping inside, the dog became a terrifying hellhound that wouldn't let a soul pass.
Are we advancing toward knowledge? Or is knowledge receding from us?
He began advancing his pawns only when his pieces had occupied their strongest possible positions.
Through the open window it sounded as though someone were creeping about outside, but it was just the wind rustling the hedge.
When she was quite tiny, her greatest delight was to catch flies and pull their wings off, to make creeping insects of them.
Things are advancing at a snail's pace.
We’re empowering the next generation of women by investing in adolescent girls and advancing the Let Girls Learn initiative to get 62 million girls into schools.
I’ve made advancing gender equality a foreign policy priority.
Among her current projects are several that focus on improving healthcare in Africa and advancing technology in developing countries.
Press freedom is advancing.
Fear left, hope came, and then the first real improvements began creeping in.
The army was advancing in the wrong direction.