motility

The word 'motility' is built upon the Latin verb movēre, meaning "to move." Its past participle motus provided the root mot-, which entered English via French. The suffix -ilis (capable of) was added to form the adjective motilis in Late Latin, giving rise to the English adjective "motile," meaning capable of motion. Finally, the abstract noun-forming suffix -ity, from Latin -itas, was appended to create "motility," denoting the state or quality of being capable of spontaneous movement. This etymological path illustrates a logical progression from the concrete action of moving to the abstract capacity for movement, a concept central to biology and physiology.

Structure: mot (move) + il (relating to) + ity (state or quality) - mot: From Latin motus (moved, motion), from the verb movēre (to move). Serves as the core root conveying the sense of movement. - il: A variant of the suffix -ile, from Latin -ilis (capable of, pertaining to). Functions as an adjectival suffix forming the base "motile". - ity: From Latin -itas (denoting state or quality). A noun-forming suffix indicating an abstract condition or property.