Gloss

Webster's Practical Dictionary- A Practical Dictionary of the Englih Language · 1884 · p. 175

glos, n. Comment; explanation; interpretation or exposition of a pa age, book, etc. — v.t. To illustrate, explain.— v. i. To comment, make explanatory remarks. — Glo 'arist, n. A writer of glo es or of a glo ary. — Glo 'ary, -rl, n. A vocabulary of words requiring elucidation.