oo meaning (obsolete): definition, etymology and quotations

oo

noun

Etymology Representation of a long-o sound.

Obsolete (Ω, ω) The Greek letter omega.

Then came ther downe goodly ladyes tweyne […] And seyde, the gret Alpha & Oo most souereyne […] had hem thedyr sent.c. 1500, The Assembly of Gods, published 1158:

noun

UK /ˈəʊ.əʊ/ · US /ˈoʊ.oʊ/

Etymology From Hawaiian ʻōʻō, resembling its call.

Any of four Hawaiian birds of the genus Moho, formerly classed with the honeyeaters and now believed to be extinct.

On this visit I made careful inquiries as to the success of Mr. Gay's efforts to raise the "Oo" bird on this island.1898, Liliuokalani, Hawaii's Story by Hawaii's Queen:
Several years earlier, she had arranged to bring three pairs of the rapidly vanishing ʻōʻō bird from Hawai‘i island to Kaua‘i, hoping they would form a new colony.2012, Julia Flynn Siler, Lost Kingdom, Grove Press, page 161: