ѿ

From the combination of the Cyrillic letters ѡ and т.

ѿ (upper case Ѿ)

1. A letter of the Old Cyrillic script, called ot or otu.

• 
  Regular.

ѿ • (otŭ) (lower case, upper case Ѿ)

1. A letter of the Old Church Slavonic alphabet, called отъ (otŭ), and written in the Old Cyrillic script.

ѿ • (otŭ)

1. Alternative form of отъ (otŭ)

• (Old Cyrillic-script letters) А а, Б б, В в, Г г, Д д, Е е (Є є), Ж ж, Ѕ ѕ (Ꙃ ꙃ), З з (Ꙁ ꙁ), И и, І і (Ї ї), Ꙉ ꙉ, К к, Л л, М м, Н н, О о, П п, Р р, С с, Т т, Оу оу (Ꙋ ꙋ), Ф ф, Х х, Ѡ ѡ (Ѿ ѿ), Ц ц, Ч ч, Ш ш, Щ щ, Ъ ъ, Ꙑ ꙑ, Ь ь, Ѣ ѣ, Ꙗ ꙗ, Ѥ ѥ, Ю ю, Ѫ ѫ, Ѭ ѭ, Ѧ ѧ (Ꙙ ꙙ), Ѩ ѩ (Ꙝ ꙝ), Ѯ ѯ, Ѱ ѱ, Ѳ ѳ, Ѵ ѵ, Ҁ ҁ

ѿ (otŭ)

1. Alternative spelling of отъ (otŭ)

From Proto-Slavic *otъ.

ѿ (otŭ)

1. (with genitive) from
   • c. 1200-1220, Novgorod birch-bark letters, document № 531:

     ѿ ане покло ко климѧте

     otŭ ane poklo ko klimęte

     Greetings from Anna to Klimyata.

• “ѿ”, in Древнерусские берестяные грамоты [Birchbark Literacy from Medieval Rus] (in Russian), http://gramoty.ru, (please provide a date or year) (document № 199)