The word "johnstoni" is spelled with six letters and pronounced as /dʒɒnstəni/. The first part of the word "john" has the letter "h" after "j" because "j" is a voiced palatal approximant and needs a voiceless fricative sound to follow it. The "-stoni" at the end represents the Latin suffix "-i" used to denote the origin or authorship of a name or concept. This spelling pattern is commonly used in scientific nomenclature to honor the person who discovered or described a particular species.
The word "johnstoni" is derived from the surname Johnston, which originated as a Scottish and Irish surname. It is an anglicized form of the Gaelic name Mac Iain, meaning "son of John". The name John is a given name of Hebrew origin, derived from the Hebrew name Yochanan, meaning "Yahweh is gracious". Therefore, "johnstoni" likely refers to something or someone related to or associated with the surname Johnston.