The comitative case, or a word in this case.

(grammar) Of, or relating to the grammatical case that is used in some languages to indicate accompaniment.

In a comitative manner.

plural of comitative

Of or pertaining to a count or earl.

(ophthalmology) Describing the degree of eye misalignment when looking at objects that does not depend on direction of gaze

plural of comitative case

(grammar) Noun case used to denote companionship. In English, this is usually expressed by the prepositional phrase in company with, together with or with, as in "with the house." Languages that use the comitative case include Estonian, Finnish, Hungarian, Inari Sami, Northern Sami, Skolt Sami, and Quechua. It is also found in many Australian Aboriginal languages, where it is commonly used to form names of places and languages.