A verb appearing as ᴱN. hich- “vomit” in Early Noldorin Word-lists of the 1920s from primitive ᴱ✶pṣk- (PE13/163), where the initial p became h as was often the case in the 1920s.

Neo-Sindarin: I’d retain this verb as ᴺS. hich- “vomit” for purposes of Neo-Sindarin, preserving its modern rather than primitive form, perhaps derived from an (onomatopoeic?) primitive form *khikh-.