Etymonline/marten

mid-13c., "skin or fur of the marten," from O.Fr. martrine, noun use of fem. adj. martrin "of or pertaining to the marten," from martre "marten," from Frank. *martar, from P.Gmc. *marthuz (cf. O.S. marthrin "of or pertaining to the marten," O.Fris. merth, O.E. mearþ, O.N. mörðr "marten"), probably from PIE *martu- "bride," perhaps on some fancied resemblance, or else a Gmc. euphemism for the real name of the animal, which may have been taboo. In M.E. the animal itself was called marter, directly from O.Fr. martre, but marten took over this sense in English c.1400. [] marten
Middle English martren, martryn, from Anglo-Norman martrine "marten fur," from Old Low Franconian *marþrin "of marten fur" (cf. Middle Dutch martren), from *marþra "marten" (compare Dutch marter), from Proto-Germanic *marþuz (compare Low German Mort, West Frisian murd "polecat," Old English mearþ "shrew"), originally "wedding" (cf. Crimean Gothic marzus "wedding"), from Proto-Indo-European *martus "bride." More at marry. For sense development, compare Italian donnola "weasel" from donna "lady," Greek nyfítsa "weasel" from nymfē "bride." Marten#Cultural references 
In the Middle Ages, marten pelts were highly valued goods used as a form of payment in Slavonia, the Croatian Littoral and Dalmatia. The Croatian word for marten, kuna, is the name of the modern Croatian currency. A marten is depicted on the obverse of the 1, 2 and 5 kuna coins, minted since 1993, and on the reverse of the 25 kuna commemorative coins. 
==See also==
* kuna for Slavic
* kuna Slavic kuna "marten" may relate to Norse kona and kone "woman, wife", Ancient Greek gynē "woman" and even Guaraní kuna "woman," like English marten may relate to the bride or lady.
==Notes==
; Comments
: group=c
; Quotes
: group=q
; References
: group=r
; Wikis
: group=w
; Xternal links
: group=x