part-, parti-

(Latin: part, parts, to divide)

participant (s) (noun), participants (pl)
1. Someone who participates, shares, or takes part in something.
2. Anyone who is sharing in or taking part in an activity, organization, group, etc.
participate (verb), participates; participated; participating
1. To take part in an event or some kind of activity.
2. To share in something: "Every pupil in the class participated in the musical performance."
participating (adjective), more participating, most participating
participation (s) (noun), participations (pl)
Etymology: from Late Latin participationem, participatio, a noun of action from the stem of Latin participare, "participate"; from particeps, participis, "partaker"' from pars, partis, "part" + -cip-, a form of the stem capere, "to take".
participle (s) (noun), participles (pl)
Etymology: a variant of participe, from Latin participium; literally, "a sharing, a partaking"; from particeps, "partaker". In the grammatical sense, the Latin translates Gk. metokhe "sharer, partaker," and the idea is "partaking" of the nature of both a noun and an adjective.
1. A very small piece of something; such as, airborne particles.
2. A very small amount of something: "There wasn't a particle of truth in anything the politician said."
3. A minute body that is considered to have finite mass but negligible size.
4. Any one of the basic units of matter; such as, a molecule, an atom, or an electron.
5. A unit of matter smaller than the atom or its main components.
6. Etymology: from Latin particula "small part".
1. Relating to one person or thing out of several.
2. Something which is special and worth mentioning.
3. Belonging to one person and being different from those of other people.
4. Having or demanding high standards or taking great care when making a choice.
5. A term for emphasizing that someone is talking about one specific person or thing and not anyone or anything else.
6. Belonging to, or associated with a specific person, group, thing, or category; not with anything in general or universal.
7. Etymology: "referring to a single thing or person" is from Old French particuler; from Late Latin particularis, "of a part"; which came from Latin particula, "particle".