kathaṃ : [adv.] how?

A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]

Kathaŋ (adv.) [cp. Vedic kathaŋ & kathā] dubit. interr. part. 1. how; with ind. pres. PvA 6 (k. puriso paṭilabhati), or with fut. & cond. J i.222; ii.159 (k. tattha gamissāmi); vi.500; PvA 54 (na dassāmi) -- 2. why, for what reason? J iii.81; v.506. Combined with -- ca Vin i.114; ii.83. -- carahi D ii.192. -- nu & -- nu kho Vin ii.26, J iii.99; iv. 339; Nd2 189, see also evaŋ nu kho. -- pana D ii.163. -- su Nd2 189. -- hi J iv.339; DhA i.432. -- hi nāma Vin i.45; ii.105; iii.137; iv.300; all in the same meaning; -- ci (kathañci) scarcely, with difficulty Th 1, 456.
   -- kathā "saying how? how?" i. e. doubt, uncertainty, unsettled mind (cp. kaṅkhā); expl. as vicikicchā dukkhe kankhā Nd2 190; D ii.282; Sn 500, 866, 1063, 1088; DhA iv.194; as adj. and at end of cpd. ˚ -- katha, e. g. vigata˚ (in phrase tiṇṇa -- vicikiccha . . . vesārajjappatta) D i.110=Vin i.12; tiṇṇa˚ (+ visalla) Sn 17, 86, 367. k -- k -- salla "the arrow of doubt" D ii.283 (vicikicchā +). -- kathin having doubts, unsettled, uncertain D ii.287; M i.8; Nd2 191; DhsA 352; a˚ free from doubt, Ep. of Arahant (expld DA i.211: "not saying how and how is this?"); M i.108; It 49; Sn 534, 635, 868, 1064; in phrases tiṇṇa -- vicikiccho viharati akathankathī kusalesu dhammesu D i.71=Pug 59, jhāyī anejo a˚ Dh 414 (: DhA iv.194)=Sn 638. -- kara (adj.) how acting, what doing? k. ahaŋ no nirayam pateyyaŋ ("ti/ poiw_n maka/rios e)/somai") J iv.339; Sn 376; J iv.75; v.148. -- jīvin leading what kind of life? Sn 181. -- dassin holding what views? Sn 848 (see ˚sīla). -- pakāra of what kind Vin i.358; Sn 241 (:kathappakāra). -- paṭipanna going what way, i. e. how acting? D ii.277, 279, 281. -- bhāvita how cultivated or practised? S v.119. -- bhūta "how being," of what sort, what like D ii.139, 158; -- rūpa of what kind? M i.218; A i.249; iii.35; J iii.525. -- vaṇṇa of what appearance, what like? D ii.244. -- vidha what sort of? J v.95, 146; DhsA 305. -- sameta how constituted? Sn 873. -- sīla of what character or conduct? how in his morality? Sn 848 (kathaŋdassī kathaŋsīlo upasanto ti vuccati).

Pali-English Dictionary, TW Rhys Davids, William Stede,

kathaṃ: 1. adv. 如何? 2. adv. 為何? 3. 談論([kathā談論]之陰單業格)

巴漢辭典 編者：(斗六) 廖文燦

kathaṃ (in comp. for katham
• at the beginning of an adjective compound it may also have the sense of kim)

Sanskrit-English Dictionary, by M. Monier William