Dict: strongs - thankful

Strongs:

H3036 @ ידון yâdôn yaw-done' From H3034; thankful; {Jadon} an Israelite: - Jadon.

G2169 @ εὐχαριστία eucharistia yoo-khar-is-tee'-ah From G2170; gratitude; actually grateful language (to God as an act of worship): - thankfulness (giving of) thanks (-giving).

G2170 @ εὐχάριστος eucharistos yoo-khar'-is-tos From G2095 and a derivative of G5483; well favored that is (by implication) grateful: - thankful.

G884 @ ἀχάριστος acharistos ach-ar'-is-tos From G1 (as a negative particle) and a presumed derivative of G5483; thankless that is ungrateful: - unthankful.