Notes: Reconstructed for the PEC level. Part of the forms reflect an adverbial PEC formation *Hwīq̇_ī-(nV) > *Hwq̇_ī(nV) 'by day, today'. The problem of correlation of PEC *Hwīq̇_V 'day' and PNC *wirǝ̄q̇_Ă 'sun' (q.v.) is still open (the derivational pattern is not clear).