🜊

• The lines may or may not end in serifs.

At least in sense [2], this is a cross for the root crux in 'crucible', which is sometimes written ⟨🜊^ble⟩.

🜊

1. (alchemy, archaic) vinegar, acid. Usually combined with other symbols, e.g. ⟨🜊🜕⟩ or ⟨🜕🜊⟩ nitrous/nitric acid, ⟨🜊🜔⟩ 'marine' (hydrochloric?) acid, ⟨🜊🜿⟩ tartaric acid, ⟨🜊🝄⟩ boric acid, ⟨🜊🜖⟩ vitriolic (sulfuric) acid, ⟨🜊f ⟩ formic acid, etc.

   Cf. Synonym: 🜋 for distilled vinegar

2. (alchemy, archaic) crucible, crucibulum. (A cross for crux.)

   Synonyms: 🞢, 🝩

3. (astrology, rare) vertex

   Synonym: Vx

• 🜋 distilled vinegar
• 🜵 regulus

🜊 n (genitive 🜊tī); second declension

1. (alchemy) abbreviation of acetum (“vinegar”)
   • 1656, Johann Schröder, Pharmacopeia medico-chymica [Medico-Chemical Pharamcopoeia], page 713:

     Stercus Scabritiem cutis ſanat (cum 🜊 illitum.

     The dung cures itchiness of the skin (applied with vinegar.

   • 1701, Johann Christoph Sommerhoff, Lexicon pharmaceutico-chymicum latino-germanicum & germanico-latinum [Pharmaceutico-Chemical Lexicon, Latin-German and German-Latin], page 22:

     Apomeli eſt Oxymel, ſeu Decoctum ex 🜊to & melle factum.

     Apomeli is oxymel, or a drink made from vinegar and honey.

Second-declension noun (neuter).