well-attested

adj — 2 senses

adj

Supported by a great deal of evidence.

Human sciences, Linguistics, Sciences Of words or languages, proven to exist through a large number of examples or copious records.

Cummings and Wolf (2011) covers Chinglish, but not the well-attested terms Honglish and Hongkonglish[.]2018, James Lambert, “A multitude of ‘lishes’: The nomenclature of hybridity”, in English World-Wide, page 2:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.