| obsolesce | (vi) พ้นสมัย, See also: คร่ำคร่า, เก่า |
| obsolesce | (v) become obsolete, fall into disuse, Example: This word has not obsolesced, although it is rarely used |
| obsolescence | (n) the process of becoming obsolete; falling into disuse or becoming out of date, Example: a policy of planned obsolescence |
| obsolescent | (adj) becoming obsolete |
| Obsolesce | v. i. [ L. obsolescere. See Obsolescent. ] To become obsolescent. [ R. ] Fitzed. Hall. [ 1913 Webster ] |
| Obsolescence | n. [ See Obsolescent. ] The state of becoming obsolete. [ 1913 Webster ] |
| Obsolescent | a. [ L. obsolescens, -entis, p. pr. of obsolescere, to wear out gradually, to fall into disuse; ob (see Ob-) + solere to use, be wont. ] Going out of use; becoming obsolete; passing into desuetude. [ 1913 Webster ] |