DOUBLE, DOUBLED, DOUBLING, DOUBLY
ADJECTIVES
..890 ► TWIFOLD → TWYFOLD double, twofold → arch.
1000 ► TWIN double, twofold; consisting of two
1340 ► YDOBBLED doubled → obs.
1382 ► DOUBLEFOLD double, twofold → obs.
1400 ► TWIN-KIN double, twofold, of two kinds → obs.
1400 ► TWINLEPI double, twofold
1475 ► JUMELLE double; twinned or paired; made or shaped in couples or pairs → obs.
1542 ► DUPLE double, twofold → obs.
1553 ► DUPLAT double, twofold Sc. → obs.
1610 ► DUPLAR double, duple → obs.
1646 ► GEMINOUS double; occurring in pairs
1659 ► DUPLICATORY double, twofold → obs.
1777 ► DOUBLE-BARRELLED double, twofold; serving a double purpose
1802 ► GEMINATED doubled, occurring in pairs
1883 ► GEMELLED double
ADVERBS
1200 ► TWIFOLDLY doubly, twofold, to twice the amount
NOUNS
1425 ► DUPLATION a doubling
1597 ► GEMINATION a doubling, duplication, repetition
1609 ► DUPLE a double quantity; twice as much or many → obs.
1856 ► DUPLEXITY a being double; doubleness
VERBS
1425 ► DUPLE to double; to make twice as much or many → obs.
1509 ► DUPLIFY to double, to make double → obs.
1637 ► GEMINATE to double
1637 ► TWICE to double, to make twice as much→ sl.
1875 ► TWIFOLD to bend double; to fold in two