by means of; due to; because of; according to

Common noun; Esp. 元

origin; source; beginning

Common noun; Oft. 基

basis; base; foundation; root

Common noun; Also written as 因, 原

cause

Common noun; Esp. 素

(raw) material; ingredient; base; mix (e.g. for a cake); (soup) stock

元 only; Common noun

(one's) side

元 only; Common noun

capital; principal; cost price

Common noun

root (of a plant); (tree) trunk

Common noun

part (of a brush, chopsticks, etc.) one holds (with the hand)

Common noun

first three lines of a waka

本 only; Counter

counter for plants or trees

本 only; Counter

counter for falcons (in falconry)

cause; origin; source

Esp. 依る, 拠る

to be due to; to be caused by

Esp. 依る

to depend on; to turn on

Esp. 因る, 由る

to be based on; to come from

Esp. 拠る

to be based at (a location, an organization); to be headquartered at

Conjunction

by the way; in this connection; incidentally; in passing

Conjunction

therefore; consequently; accordingly; for that reason

main cause; primary factor

fate; destiny

connection; tie; bond; origin

pretext; justification

Buddhism

hetu and prataya (direct causes and indirect conditions, which underlie the actions of all things)

Common noun

cause and effect; causality

Common noun; Buddhism

karma; fate

Adjectival nouns or quasi-adjectives (keiyodoshi)

unfortunate; unlucky; ill-fated

reason; significance; cause

由 only

piece of information that one has heard; I hear that ...; it is said that ...