Persian یک

← German ein (cognate)

← English one (cognate)

← French un (cognate)

← Ancient Greek οἶος (cognate)

← Proto-Indo-Iranian *Háywas (inherited)

← Proto-Indo-European *óywos (inherited)

← Proto-Iranian *Háywah (inherited)

← Latin ūnus (cognate)

← Middle Persian 𐫏𐫐 (mention)

← Middle Persian 𐫙𐫏𐫇 (mention)

← Sanskrit एक (cognate)

← Bactrian ιωγο (cognate)

→ Central Kurdish یەک (cognate)

→ Persian یک‌شنبه (compound)

→ Persian یکا (link)

→ Persian یکتا (compound)

→ Persian یگانه (suffix)

→ Persian یکدیگر (compound)

→ Persian یکبار (compound)

→ Persian یکم (mention)

→ Persian یک‌رنگ (compound)

→ Northern Kurdish yek (cognate)

→ Tajik як (cognate)

→ Bactrian ιωγο (cognate)