G5590 ψυχή (psychḗ)

KJV renderings: heart (+ -ily), life, mind, soul, + us, + you
Strong's definition: breath, i.e. (by implication) spirit, abstractly or concretely (the animal sentient principle only; thus distinguished on the one hand from G4151 (πνεῦμα), which is the rational and immortal soul; and on the other from G2222 (ζωή), which is mere vitality, even of plants: these terms thus exactly correspond respectively to the Hebrew H05315, H07307 and H02416)
Derivation: from G5594 (ψύχω);

From James Strong's public-domain dictionaries (G), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.