touch + -ing

source: [レムの英雄は世界一です！【リゼロ】 感動！ アニメ名場面 #1528005080｜無料GIF画像検索 GIFMAGAZINE 2220344]

arousing strong feelings of sympathy, appreciation, or gratitude:

感動的な, ほろりとする, 胸を打つ(moving)

e.g. your loyalty is very touching

e.g. a touching reconciliation scene.

concerning; about:

｟かたく｠ …について, 関して

e.g. evidence touching the facts of Roger's case.

touchingly | ˈtəCHiNGlē | adverb

touchingness | ˈtəCHiNGnəs | noun

late Middle English (as a preposition): from French touchant, present participle of toucher ‘to touch’; the adjective (early 16th century) is from touch + -ing2.