indeclinable

1. and, both, also; moreover, as well as.
2. expressing immediate connection between two actions or their simultaneous occurrence.
3. a disjunctive particle: but, on the other hand; yet.
4. in the protasis of conditional sentences: if; also frequently in a second conditional clause; (note also ca = but, in a following sentence rejecting the condition)
5. an empathic particle emphasizing the preceding word; an expletive particle.
6. ca following a relative pronoun probably makes it indefinite, while itself retaining a conjunctive sense.