Of a Conjunction
A conjunction is a part of speech that joineth together; wherefore it may be likened unto many things; for instance—
To glue, to paste, to gum arabic, to mortar, (for it joins words and sentences together like bricks), to Roman cement, (Latin conjunctions more especially), to white of egg, to isinglass, to putty, to adhesive plaster, to matrimony.
Conjunctions are thus used.
Ova et lardum, eggs and bacon. Dimidium dimidiumque, half-and-half. Amor et dementia, love and madness.