Humane means showing kindness and mercy to people and animals. Humane treatment, a humane society, humane killing.
It is humane with the stress at the end and it is not the same word as human, though they share a root — humane is a judgement and human is a fact. A humane killing is one that causes as little suffering as possible, which is a real technical standard.
1adjectivehumaneShowing kindness and mercy to people and animals.
“The shelter tries to find humane ways to deal with stray cats.”
humane is a quality.
Latin humanus comes from homo, a person. Humane and human were one word until the spelling split them.
Latin
hūmānus
Old French
humain
Middle English
humain
English, today
humane
From Middle English humain, humayne, from Old French humain, umain, from Latin hūmānus, from Latin homō (“man”). Cognate with Old English guma (“man”), whence the groom in English bridegroom.
Etymology from Wiktionary, CC BY-SA