gratitude(n.)
mid-15c., "good will," from Medieval Latin gratitudinem (nominative gratitudo) "thankfulness," from Latin gratus "thankful, pleasing" (reconstructed in Watkins to be from a suffixed form of PIE root *gwere- (2) "to favor"). The meaning "thankfulness" is attested from 1560s.also from mid-15c.
Entries linking to gratitude
*gwere-(2)
gwerə-, Proto-Indo-European root meaning "to favor."It might form all or part of: agree; bard (n.); congratulate; congratulation; disgrace; grace; gracious; grateful; gratify; gratis; gratitude; gratuitous; gratuity; gratulation; ingrate; ingratiate.It might also be the source of: Sanskrit grnati "sings, praises, announces;" Avestan gar- "to praise;" Lithuanian giriu, girti "to praise, celebrate;" Old Celtic bardos "poet, singer."