Add to the very end:
— He appended a glossary to his novel where he used an invented language.

synonyms: add on, affix, supplement.

Roget 37: add, annex, affix, superadd^†, subjoin, superpose; clap on, saddle on; tack to, append, tag; ingraft^†; saddle with; sprinkle; introduce etc. (interpose) 228; insert etc. 300.    become added, accrue; advene^†, supervene.    reinforce, reenforce, restrengthen^†; swell the ranks of; augment etc. 35.    ... show more

Roget 63: succeed; come after, come on, come next; follow, ensue, step into the shoes of; alternate.    place after, suffix, append.   

Roget 214: be pendent etc. adj.; hang, depend, swing, dangle; swag; daggle^†, flap, trail, flow; beetle.    suspend, hang, sling, hook up, hitch, fasten to, append.    ... show more

Dutch: vastmaken, aanhechten, bijvoegen

Fix to; attach:
— Append a charm to the necklace.

synonyms: hang on, tack, tack on, tag on.

State or say further.

synonyms: add, supply.

Dutch: toevoegen