I was deeply grateful for his cordial hospitality.
The company president gave a warm and sincere greeting.
丁寧 means 'polite' or 'careful', focusing on manners and attention to detail. 懇篤 adds a nuance of heartfelt warmth beyond mere politeness.
Standard kanji form for this formal/literary word.
Rarely used kanji form.
The exact derivation is uncertain. The kanji 懇 (sincere, kind) and 篤 (fervent, kind) both contribute to the meaning of deep, heartfelt kindness. The word is used in formal and literary contexts.