authigenic
adjective
au·thi·gen·ic
¦ȯthə¦jenik
variants or authigenous
(ˈ)ȯ¦thijənəs
: formed where found —used of mineral particles of rocks formed by crystallization in the place they occupy —opposed to allothogenic
Word History
Etymology
German authigen authigenic (from Greek authigenēs born in that place, native, from authi there + -genēs born) + English -ic or -ous; akin to Greek au again
First Known Use
circa 1888, in the meaning defined above