安かろう悪かろう

やすかろうわるかろう

you get what you pay for, cheap and nasty

良かろう

よかろう

that's right, very well, it would be best to...

なかろう

probably not so

無かろう

probably not so

だろうか

だろうか

indicates question

あろうとなかろう

あろうとなかろう

whether or not, presence or absence

弄火

ろうか

playing with fire, flirting

過労

かろう

overwork, strain

老化

ろうか

ageing, aging, senile deterioration

狼火

ろうか

signal fire, beacon

家老

かろう

chief retainer, daimyo's minister

廊下

ろうか

corridor, hallway, passageway

弄花

ろうか

gambling with flower cards

老老介護

ろうろうかいご

old people providing care for old people (parents, siblings, in-laws, etc.)

蝋紙

ろうかみ ろうし

wax paper

ろ過器

ろかき ろかうつわ

filter element

中廊下

なかろうか

central corridor, middle corridor

哥老会

かろうかい

Gelaohui (secret Chinese society of the late Xing dynasty)

炉火

ろか ろび

hearthfire, ingle, open fire in a fireplace