增
JLPT HSK 4

zēng
Left: earth 土, right: formerly 曾/曽 (At rain 丷 on the field 田 as under the sun 日, that's how we worked formerly.)
(Now we have soil erosion. But:) The earth formerly: increased.

	曾
JLPT HSK 5

céng, zēng
Variation of 曽, which shows: out of 丷, field 田, sun 日
At rain 丷 on the field as under the sun, that's how we worked formerly.

	赠
JLPT HSK 6

zèng
Left: shell/money 贝, right: formerly 曾 (=曽, At rain 丷 on the field 田 as under the sun 日, that's how we worked formerly.)
Money was formerly given as present.

	僧
JLPT no HSK

sēng
Left: person 人, right: formerly 曾 (At rain 丷 on the field 田 as under the sun 日, that's how we worked formerly)
The person, who refers to the "formerly" is a monk.

	憎
JLPT no HSK

zēng
Left: feeling 忄, right: formerly 曾 (=曽- At rain 丷 on the field 田 as under the sun 日, that's how we worked formerly)
Feelings from formerly: the hatred.

	蹭
JLPT no HSK

cèng
Left: foot, sufficient 足, right: formerly 曾 (=曽 - At rain 丷 on the field 田 as under the sun 日, that's how we worked formerly.)
The foot formerly rubbed against sth. (like the ground) causing a slow walk.