Where does “cryptoperthite” come from?

cryptoperthite (English) comes from English Perthite, from English Perth, from Scottish Gaelic frìth, from English frith, from English Firth, from Scots firth, from Middle English fyrth, from Old Norse fjǫrðr — passed , crossed.

cryptoperthite (English): A submicroscopic form of perthite that can only be observed by using X-ray diffraction or electron microscopy

Definitions

  1. A submicroscopic form of perthite that can only be observed by using X-ray diffraction or electron microscopy

Ancestry of “cryptoperthite”, step by step

cryptoperthite traces back through two separate lines of ancestry.

via English Perthite

StepLanguageWordMeaning
1EnglishPerthiteA native or inhabitant of Perth, Australia
2EnglishPerthA Scottish earldom
3Scottish Gaelicfrìthdeer forest
4EnglishfrithPeace; security; Sanctuary, asylum; To protect;...
5EnglishFirthOS grid ref HY3514 (approx
6Scotsfirth
7Middle Englishfyrth
8Old Norsefjǫrðrfirth, fjord
9Proto-Norseᚠᛖᚱᚦᚢᛉ
10Proto-Germanicferþuzinlet, fjord
11Proto-Indo-Europeanpértuscrossing
12Proto-Indo-Europeanper-before, in front; first; to go through
13Proto-Indo-Europeanpr̥tóspassed , crossed

via English crypto

StepLanguageWordMeaning
1EnglishcryptoA secret supporter or follower; Cryptography;...
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Proto-Indo-European pértus