From Wiktionary, the free dictionary
Probably from Ancient Greek Ο (W) (digamma) in a late form such as 
, 
; or from Ο (Q) (koppa), given its similarity to a truncated π (90).
π΅ β’ (q)
- The sixth letter of the Gothic alphabet, representing /kΚ·/, with a numerical value of 6.
- Gothic script letters (alphabet appendix, script appendix): π°, π±, π², π³, π΄, π΅, πΆ, π·, πΈ, πΉ, πΊ, π», πΌ, π½, πΎ, πΏ, π, π, π, π, π, π
, π, π, π, π, π [edit]
, 
; or from Ο (Q) (koppa), given its similarity to a truncated π (90).