At a glance

Most common: IRISH, GREEK, LATIN. Rarest: SWAZI, FARSI, HAUSA. 1 has been a Wordle answer (DUTCH). 1 more is on the answer list and could still come up.

Five-letter languages (13)

WordRarityWordle
IRISHUncommon—
GREEKUncommon—
LATINUncommon—
DUTCHUncommon#119
WELSHUncommonpossible answer
CZECHRare—
HINDIRare—
TAMILRare—
MALAYEpic—
KHMEREpic—
HAUSALegendary—
FARSILegendary—
SWAZIMythic—

Four-letter languages (4)

THAI, URDU, ZULU, IGBO

Questions

What is the most common five-letter language?

IRISH, followed by GREEK and LATIN, by how often they appear in written English.

What is the rarest five-letter language?

SWAZI is the rarest on this list, then FARSI and HAUSA. In Wordillion a word that rare scores Mythic.

Which five-letter languages have been Wordle answers?

DUTCH (#119).

Rarity is how often a word appears in a large sample of written English (the wordfreq dataset), the same measure Wordillion scores with. “Wordle” shows the puzzle number if the word has been a New York Times Wordle answer, or “possible answer” if it is on the answer list but has not come up yet.