re- (expressing intensive force) + marquer ‘to mark, note’

source: [俺の妹がこんなに可愛いわけがない‎の五更瑠璃がドヤ顔で高説を述べるGIF画像｜無料GIF画像検索 GIFMAGAZINE 659850]

1. reporting verb say something as a comment; mention:

｟書｠ 〖直接話法〗…と述べる, 言う

e.g. with direct speech : “Tom's looking peaked,” she remarked

〖～ that節〗 〈人が〉(意見･感想として)…だと述べる, 言う

e.g. with clause : he remarked that he had some work to finish

e.g. no object : the judges remarked on the high standard of the entries.

2. with object regard with attention; notice:

｟かたく･やや古｠ 〈人が〉〈物･事〉に気づく

e.g. he remarked the man's inflamed eyelids.

a written or spoken comment:

«…についての/…という» (短かめの)感想, 意見, 発言, 所見(comment) «about, on/that節» ;注記; 摘要; 〖～s〗 (公式の)言葉

e.g. I decided to ignore his rude remarks.

notice or comment:

｟古｠ 注目, 注意

e.g. the landscape was not worthy of remark.

late 16th century (in remark (sense 2 of the verb) ): from French remarquer ‘note again’, from re- (expressing intensive force) + marquer ‘to mark, note’.