The word 'transmissibility' is a modern scientific formation built upon classical Latin foundations. Its core, 'transmiss,' originates from the Latin verb transmittere, a compound of trans- (across) and mittere (to send). This literal sense of "sending across" evolved into the general concept of passing something from one place, person, or state to another. The suffix '-ibility,' a descendant of the Latin -ibilitas, is systematically added to adjectives (like 'transmissible') to create abstract nouns that express the capacity or quality denoted by the adjective. Thus, the term logically constructs the meaning "the quality of being capable of being sent across," which in specialized contexts, such as epidemiology, precisely defines the potential for a disease agent to be transferred between hosts.

Structure: transmiss (to send across) + ibility (quality of being able) - transmiss: A morpheme derived from Latin transmissus, the past participle of transmittere (to send across). In this word, it functions as the verb root meaning "to transmit." - ibility: A suffix of Latin origin (-ibilitas), a variant of -ability, which attaches to adjectives ending in -ible to form nouns denoting the quality or state of being capable of something.