From respect + -ability.

• IPA: /ɹɪˌspɛktəˈbɪlɪti/

respectability (uncountable)

1. The quality of being respectable.
   • 1892, Walter Besant, “Prologue: Who is Edmund Gray?”, in The Ivory Gate […], New York, N.Y.: Harper & Brothers, […], →OCLC ↗:

     Such a scandal as the prosecution of a brother for forgery—with a verdict of guilty—is a most truly horrible, deplorable, fatal thing. It takes the respectability out of a family perhaps at a critical moment, when the family is just assuming the robes of respectability: […] it is a black spot which all the soaps ever advertised could never wash off.

2. The class of respectable people.

• French: respectabilité
• Italian: rispettabilità, perbenismo
• Portuguese: respeitabilidade
• Spanish: respetabilidad