Quenya 

hloirë

venom, poison, poisonousness

hloirë noun "venom, poison, poisonousness" (PE17:185)

hloirë

noun. venom, poison, poisonousness

A noun in Quenya Notes (QN) from 1957 glossed “venom, poison(ousness)” derived from the root √SLOY (PE17/185). I think this applies to poison in the abstract, as opposed to hloima used for a specific venomous substance.

hloirëa

adjective. venomous, venomous, *poisonous

A word appearing in Quenya Notes (QN) from 1957 glossed “venomous”, an adjectival form of Q. hloirë “venom” (PE17/185).

Conceptual Development: The Qenya Lexicon of the 1910s had ᴱQ. henuva “venomous, poisonous”, an adjectival form of ᴱQ. heno (henu-) “venom, poison” (QL/38).

hloirëa

venomous

hloirëa adj. "venomous" (PE17:185)