Words related to -ment
1530s, "value of property for tax purposes," from assess + -ment. The meaning "act of determining or adjusting of tax rate, charges, damages, etc., to be paid" is from 1540s (earlier in this sense was assession, mid-15c.). The general sense of "estimation" is recorded from 1620s; in education jargon by 1956.
1510s, "condition of being at one (with others)," a sense now obsolete, from atone + -ment. The theological meaning "reconciliation" (of man with God through the life, passion, and death of Christ) is from 1520s; that of "satisfaction or reparation for wrong or injury, propitiation of an offended party" is from 1610s.