Matthew 24:21οἵα
For at that time there will be great tribulation, unseen from the beginning of the world until now, and never to be seen again.
Mark 9:3οἷα
His clothes became radiantly white, brighter than any launderer on earth could bleach them.
Romans 9:6οἷον
It is not as though God’s word has failed. For not all who are descended from Israel are Israel.
1 Corinthians 15:48οἷος
As was the earthly man, so also are those who are of the earth; and as is the heavenly man, so also are those who are of heaven.
2 Corinthians 10:11οἷοί
Such people should consider that what we are in our letters when absent, we will be in our actions when present.
2 Timothy 3:11οἷά
my persecutions, and the sufferings that came upon me in Antioch, Iconium, and Lystra. What persecutions I endured! Yet the Lord rescued me from all of them.

Abbott-Smith

οἷος, -α, -ον
relat. pron., qualitative (related to ὅς as qualis to qui), what sort or manner of, such as, in NT usually without its correl. τοιοῦτος : Mat.24:21, Mrk.9:3, 2Co.12:20, 1Th.1:5, 2Ti.3:11, Rev.16:18; before τοιοῦτος, 1Co.15:48 15:2 2Co.10:11; id. redundant, Mrk.13:19; τ. αὑτὸν . . . σἷον, Php.1:30; οὐχ οἷον δὲ ὅτι, elliptically, but it is not as though (RV), Rom.9:6.†
(AS)

Sources: Abbott-Smith’s Manual Greek Lexicon of the New Testament (1922, public domain) and glosses from STEPBible TBESG (CC BY 4.0); STEPBible TAGNT (Greek New Testament, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.