/ Dictionary / Index H historical linguistics: Meaning and Definition of Find definitions for: histor'ical linguis'tics Pronunciation: [key] the study of changes in a language or group of languages over a period of time. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. historical geology historical materialism Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language