meron

Etymology 1
From, mero- in the sense of "part, portion".

Noun

 * 1)  Either of the pair of entities that together make up an instanton

Etymology 2
Back-formed from, ultimately from.

Noun

 * 1)  A  on the side of the thorax of an insect, above the coxae of the mid and hind legs.

Etymology 3
From, in analogy with.

Noun

 * 1) The unit of classification in meronomy.