L, neut. of alburnus, whitish < albus, white: see elf
alburnum in American English
(ælˈbɜːrnəm)
noun
Botany
sapwood
Derived forms
alburnous
adjective
Word origin
[1655–65; ‹ L, equiv. to alb(us) white + -urnum neut. n. suffix]This word is first recorded in the period 1655–65. Other words that entered Englishat around the same time include: disk, intensity, loaded, minimum, organism