Subspecialities

Part of speech: noun

Definitions

1. A specific branch within a larger field of study or profession, often indicating a narrow area of expertise that requires additional training or knowledge
2. Denoting specialized areas that emerge from a broader discipline, focusing on unique topics, practices, or techniques
3. Identifying divisions of a primary profession where practitioners develop specialized skills and knowledge distinct from general practices

Etymology: "Subspecialities" is the plural of "subspeciality," so its history is that of the singular form. The word is a compound of "sub-," from Latin "sub" meaning "under" or "below," and "speciality," a word for a particular branch of study or practice. Built this way, it describes a narrower division inside an already specialised field, so a subspeciality is a specialty within a specialty. The "speciality" part comes from Latin "specialis," meaning "special" or "particular," which is also the source of "special" itself. British English tends to prefer "speciality" where American English uses "specialty," and the two spellings show that the same root has been adapted separately on each side of the Atlantic. The plural simply adds "-ies" to the singular, as with any noun ending in a consonant plus "y."