Borrowed from German Tasse, from French tasse, from Arabic طَاس (ṭās). Compare Czech tácový.

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• Rhymes: -aːts

tác m inan

1. platter, tray

   Synonym: podnos

2. (informal) a thousand crowns (thousand units of Czech currency)

   Synonyms: tisíc, litr, talíř

• “tác”, in Příruční slovník jazyka českého (in Czech), 1935–1957
• “tác”, in Slovník spisovného jazyka českého (in Czech), 1960–1971, 1989
• “tác”, in Internetová jazyková příručka (in Czech), 2008–2025

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(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

tác • (索, 作)

1. (obsolete) age

   bạn tác ― friend(s) of or around the same age

   • 15th century, Nguyễn Trãi, “寶鏡警戒 Bảo kính cảnh giới 53”, in Quốc âm thi tập (國音詩集):

     伴索易唯它沛召

     Bạn tác dể duôi đà phải chịu

     My friends my age scorn me, I've already had to accept that.

   • Lạc An cư sĩ (樂安居士 "Jolly and Tranquil Hermit"), 芻蕘對話 Sô Nghiêu đối thoại ( "Dialogue between the Grassmower and Firewood-Gatherer"); 1870 version, 3a

     意羅計侶索𨕭
     窒潙墨󱎾買𢧚蹺隊

     Ấy là kể lứa tác trên,
     Rất vời mực thước mới nên theo đòi.

     That means: even among the older age groups
     One should emulate only the very exemplary.

   • 19th century, Nguyễn Đình Chiểu, Tale of Lục Vân Tiên, 1916 Nôm version, lines 443-444

     户裴𠸜儉索澄堆𨑮

     Họ Bùi tên Kiệm tác chừng đôi mươi.

     He is surnamed Bùi, named Kiệm, aged about twenty.

It survives only in the compound tuổi tác and is now displaced by tuổi, which is ultimately from Old Chinese 歲 (OC *s-qʷʰat-s) (Baxter & Sagart, 2014).

tác

1. Sino-Vietnamese reading of 作