This paper analyses the loss of politeness markers across three generations in the Ryukyuan Islands of Japan. Honorific registers are first lost in endangered languages, and last speakers of an endangered language often state that they avoid using the language to semi-speakers because they do not use polite registers. We give an overview of language endangerment, analyse how individuals reflect on politeness markers, and how language loss and the awareness thereof manifest in language use. We find that the loss of politeness markers does not result in an affront to convention and social order. Japanese, the replacing language, is employed to construct social orders. Linguistically constructed orders in Japanese are different from those in Ryukyuan. In one of the two communities studied, politeness markers no longer function to construct social hierarchies but serve as a ‘we-code’ among locals. The experience of language endangerment works here as a social levelling mechanism.