grat/grac

pleasing; thankful

Spelled grat, grac · gratus 'pleasing, welcome, thankful'; gratia 'favor, thanks'

Latin gratus meant pleasing: gratitude expresses thanks, gracious people show kindness, and a gratuitous insult comes without being called for.

Words built from it

gratitude — a feeling of thankfulness
grat (thankful) + -itude (state or quality)
grateful — feeling or showing thanks
grat (thankful) + -ful (full of)
gratuitous — uncalled for; given or done without sufficient reason
grat (pleasing) + -ous (having the quality of)
gracious — kind, courteous, and generous
grac (favor) + -ious (characterized by)
ingratiating — trying to win someone's favor, often through flattery
in- (into) + grat (favor) + -iate (bring) + -ing (ongoing action)
congratulate — express pleasure at someone's success or good fortune
con- (intensively) + grat (thankful) + -ate (act)

grating — Comes from grate, through Old French grater 'to scrape'; it does not come from gratus 'pleasing, thankful.'