Ι

See also: ι, ί, ΐ, ϊ, Ϊ, ῑ, ἵ, and Appendix:Variations of "i"

Ι U+0399, Ι GREEK CAPITAL LETTER IOTA ← Θ [U+0398] Greek and Coptic Κ → [U+039A]

Ancient Greek

Letter

Ι • (I) (uppercase, lowercase ι)

1. The upper case letter iota, a letter resp. the ninth letter of the Greek alphabet.

Symbol

Ι • (I)

1. A digit 1 in the decimal acrophonic numeral system that predated the gematria system. A tally mark equivalent to the Roman digit I.
2. (money) A tally for obols.

Usage notes

The basic acrophonic units are Ι 1, 𐅃 5, Δ 10, Η 100, Χ 1000 and Μ 10,000. Ι is iterated for ΙΙ 2, ΙΙΙ 3 and ΙΙΙΙ 4, and are added to 𐅃 5 for 𐅃Ι 6, 𐅃ΙΙ 7, 𐅃ΙΙΙ 8 and 𐅃ΙΙΙΙ 9.

Unlike higher digits, Ι is not joined to Τ and Σ for quantities of talents and staters. Rather, the letters Τ and Σ are used as tally units, as in ΤΤΤ (3 talents) and Τ𐅐𐅏ΣΣΣ (1 talent 18 staters). An exception is made for drachmas, where the special symbol 𐅂 is used, e.g. 𐅂𐅂𐅂𐅂 (4 drachmas). In this system, Ι is used for obols, as in 𐅂𐅂𐅂ΙΙΙ (3 drachmas 3 obols, or 3½ drachmas), 𐅄Δ𐅃𐅂ΙΙΙΙ (66 drachmas 4 obols).

Greek

Letter

Ι • (I) (uppercase, lowercase ι)

1. The upper case letter iota, the ninth letter of the modern Greek alphabet.

Numeral

Ι • (I)

1. The number ten in Greek numerals.

,Ι

1. The number 10,000 in Greek numerals.

See also

• (Greek-script letters) Α α, Β β, Γ γ, Δ δ, Ε ε, Ζ ζ, Η η, Θ θ, Ι ι, Κ κ, Λ λ, Μ μ, Ν ν, Ξ ξ, Ο ο, Π π, Ρ ρ, Σ σ ς, Τ τ, Υ υ, Φ φ, Χ χ, Ψ ψ, Ω ω
• (non-Classical letters) Ϝ (W) ϝ (w), Ͷ ͷ, Ͱ (H) ͱ (h), Ϻ (S) ϻ (s), Ϟ, ϟ, Ϙ (Q) ϙ (q), Ͳ (S) ͳ (s)
• (punctuation) · ;
• (diacritics) ᾿ ῾ ◌́ ◌̀ ῀ ¨