hwá

Part of speech: interrogative pronoun
Gender: masculine, feminine
(hwæt neut) who; what
Etymology
[Mod E WHOOE hwá; WHATOE hwæt (neut); WHOSEOE hwæs (Gen); WHOM OE hwǽm, hwám (Dat); WHYOE hwý (Instr);
Prot-Germ *hwaz, *hwez (masc, fem), *hwat (neut); Goth ƕas, ƕa; O Fris hwā, hwet; O Sax hwē, hwat; Dt wie, wat; OHG hwer, wer, hwaz, waz (Mod G wer, was); O Icel hverr, hvat (Mod Icel hver, hvað) ← Indo-Europ *kwo-, *kwe-; Sanskr kás, ká “who”; Avest kō, kā “who”; Anc Gr τίς “who”; Lat quis “who”; quid “what”; Lith kàs “who”; O Slav къто “who” (Russ кто)]
Paradigm

3.3. Interrogative pronouns

Interrogative pronouns hwá, hwæt (who, what) are used only in masculine and neuter genders, singular.

declension of the interrogative pronoun
hwá
(who),
hwæt
(what)
masculine neuter
nominative hwá hwæt
genitive hwæs hwæs
dative hwǽm, hwám hwǽm, hwám
instrumental - hwý, hwí, hwon
accusative hwone hwæt

For the peculiarities of the declension of possessive pronouns and other adjectival pronouns vid 2.1. (c)