ต่อ

From Proto-Tai *toːᴮ (“bee”).^[1]

In Southwestern Tai, cognate with Lao ຕໍ່ (tǭ), Lü ᦎᦸᧈ (ṫoa¹), Shan တေႃႇ (tàu).

In Northern Tai, cognate with Zhuang doq.

Compare Proto-Be *ɗawᴮꟲ².

ต่อ • (dtɔ̀ɔ) (classifier ตัว)

1. (ตัว~) wasp

   Synonyms: เปศัสการิน (bpee-sàt-sà-gaa-rin), เปศัสการี

From Proto-Tai *toːᴮ (“to join”).^[2]

In Southwestern Tai, cognate with Lao ຕໍ່ (tǭ)

In Northern Tai, cognate with Zhuang doq.

ต่อ • (dtɔ̀ɔ) (abstract noun การต่อ)

1. to extend; to prolong
2. to connect; to join
3. to build, construct, or create, especially by assembling certain materials
4. to entice or lure (as into a trap, danger, etc); to decoy; to bait
5. (of a vehicle, the flame on a candle, etc) to transfer (from one to another)
6. (of knowledge) to transfer or pass on (as from a teacher to a student)

ต่อ • (dtɔ̀ɔ)

1. next; further

• ต่อไป (dtɔ̀ɔ-bpai)

• ถัด (tàt)

ต่อ • (dtɔ̀ɔ)

1. time: used for expressing multiplication

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

ต่อ • (dtɔ̀ɔ) (abstract noun การต่อ)

1. to negotiate; to bargain
2. (colloquial, of a price) to ask for reduction

In Southwestern Tai, cognate with Lao ຕໍ່ (tǭ).

In Northern Tai, cognate with Zhuang doq.

ต่อ • (dtɔ̀ɔ)

1. per: for each; for every
2. to: used to express comparison or opposition
3. to: used to express motion or direction towards someone or something
4. until; once
5. before; against
6. (archaic) from: used to indicate source or origin
   • 1850, จดหมายเหตุเรื่องทูตอเมริกันเข้ามาในรัชกาลที่ ๓ เมื่อปีจอ พ.ศ. ๒๓๙๓, พระนคร: หอพระสมุดวชิรญาณ, published 1923, page 52:

     ให้รักษาองค์รับอ่างเขียวต่อพระคลังในซ้ายไปตั้งให้ฝรั่ง ๓ ใบ

     hâi rák-sǎa-ong ráp àang kǐao dtɔ̀ɔ prá klang nai sáai bpai dtâng hâi fà-ràng · sǎam · bai

     The royal guards shall take three emerald basins from the Left Inner Treasury to [and] install [them] for the farangs.

In Southwestern Tai, cognate with Northern Thai ᨲᩬᩴ᩵, Lao ຕໍ່ (tǭ), Khün ᨲᩳ᩵, Lü ᦎᦸᧈ (ṫoa¹), Shan တေႃႇ (tàu), Ahom 𑜄𑜦𑜡 (tō).

Compare Old Khmer dara (“to strike; to smite”), Modern Khmer ទរ (tɔɔ), Middle Chinese 鬥 (MC tuwH).

Possibly related to ท่อ (tɔ̂ɔ), ทอ (tɔɔ).

ต่อ • (dtɔ̀ɔ) (abstract noun การต่อ)

1. (now chiefly in combination) to fight; to strike; to attack; to combat; to war; to battle

(Not separated by etymology)

• “ต่อ” in Thai Dictionary Project (TDP) (UC Berkeley 1964) (plus additional data from the Royal Institute of Thailand (RI) and NECTEC's LEXITRON project (LEX)). Searchable online at SEAlang.net.