English word thankful comes from English thank, English -ful
| Dictionary entry | Language | Definition |
|---|---|---|
| thank | English (eng) | (obsolete) An expression of appreciation; a thought. (transitive) To credit or hold responsible.. (transitive) To express gratitude or appreciation toward.. (transitive) To feel gratitude or appreciation toward. |
| -ful | English (eng) | Used to form adjectives from nouns. Full of, tending to, or thoroughly possessing the quality expressed by the noun.. Used to form nouns from nouns meaning “as much as can be held by what is denoted by the noun”. Used to form nouns indicating a great deal of the quantity expressed by the noun. |
| thankful | English (eng) | (obsolete) Obtaining or deserving thanks; thankworthy.. Showing appreciation or gratitude. |