Dealledigaeth, n. understanding, comprehension
Dealledigol, a. intellective
Deallgar, a. intelligent, wise
Deallgarwch, n. intelligence
Dealliad, n. intellection
Deallol, a. intellective
Deallt, n. understanding
Dealltiad, n. intellection
Dealltwr, n. intellectualist
Dealltwriaeth, n. understanding, comprehension