Greek core word #111 · pronoun · 144 times in the New Testament

ὅστις

HOS-tis

ὅστις, ἥτις, ὅ τι — who, whoever; which

ὅς + τις with both halves declined (ἥτις, οἵτινες); short forms ὅτου, ὅτῳ also exist.
In the NT almost only the nominative occurs, plus ὅτου in ἕως ὅτου “until”. Neuter ὅ τι is printed apart to avoid confusion with ὅτι “that”.
Often just “who”, sometimes “whoever” or “such as, the kind who”.

Forms in bold occur in the New Testament; the others complete the pattern. A dash (—) marks a form that does not exist.

	Masc. sg	Fem. sg	Neut. sg	Masc. pl	Fem. pl	Neut. pl
Nom	ὅστις	ἥτις	ὅ τι	οἵτινες	αἵτινες	ἅτινα
Gen	οὗτινος / ὅτου	ἧστινος	οὗτινος / ὅτου	ὧντινων	ὧντινων	ὧντινων
Dat	ᾧτινι / ὅτῳ	ᾗτινι	ᾧτινι / ὅτῳ	οἷστισι(ν)	αἷστισι(ν)	οἷστισι(ν)
Acc	ὅντινα	ἥντινα	ὅ τι	οὕστινας	ἅστινας	ἅτινα

Where you meet it

First met in passage 57, Luke 15:7.

Explained in the notes of 2 passages: