weihan

[← Prot-Germ *wīhan, *wīgan v “to fight, do battle”; OE wíȝan; OHG wīgan; Icel vega ← Indo-Europ *u̯eik-, * u̯ik-; cf Lat vincere “to win, vanquish”; O Ir fichid “to fight”]

waih - 1 pers, sing, p, indicat - Cor. I, XV, 32
weihan - inf- Tim. II, II, 14

4.1.1.1. (a)

I class	infinitive	preterite singular	preterite plural	past participle
	normal grade	normal grade	zero grade	zero grade
i/ă	-i-	-a-	zero	zero
additional element of vowel gradation for this class is [-i-]	i + i = ii [ī]	a + i = ai	zero + i = ĭ	zero + i = ĭ
to grab, grasp, grip	greipan	graip	gripum	gripans
to show; to tell, announce	teihan [-i:-]	taih [-ai-]	taihum [-ɛ-]	taihans [-ɛ-]

See the complete paradigm of the conjugation of strong verbs