The story
From Heepish + -ness: From the Dickens character Uriah Heep, noted for his cloying humility, obsequiousness, and insincerity, the stereotypical yes man.
Etymology from Wiktionary, CC BY-SA 4.0.
Heepishness
Today it means: Fawning, cloying servility and obsequiousness. Full definition →