grandparentaladj.
/ɡran(d)pəˈrɛntl/, U.S. /ˌɡræn(d)pəˈrɛn(t)l/ Of, belonging to, or derived from a grandparent or grandparents. Also in extended use.
ΘΚΠ
society > society and the community > kinship or relationship > kinsman or relation > grandparent > [adjective]
grandparental1791
1791 T. Dwight Triumph of Infidelity 18 Conn'd with grand parental love.
1837 Dublin Rev. July 87 There is yet another son to be provided for; the grand-sons of No. 1—the sons of Nos. 2 and 3-—who are married, will require the fostering grand-parental aid of this prince of official nest-featherers.
1872 Blackwood's Edinb. Mag. Nov. 598/2 ‘I promised him I would,’ says the proud grand-parental heart, in writing to his daughter.
1903 Lancet 18 Apr. 108/1 Cases in which the taint was grandparental.
1929 19th Cent. Dec. 810 A collateral relative at the level of the grandparental or great-grandparental generation.
1958 New Biol. 26 Pl. 3(b) At the base of the parent corm is the remains of the connexion to the ‘grandparental’ corm.
2014 Manch. Evening News (Nexis) 21 Jan. 32 Grandparents Plus and Age UK have estimated the economic value of grandparental childcare at £7.3bn, but it's not about money for grandmas and grandads.
This entry has been updated (OED Third Edition, December 2015; most recently modified version published online March 2022).
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adj.1791