Oh, sure, Joe has a tendency to floss with his own shoelaces.
What economists call assortive mating—the tendency to marry someone you resemble—is on the rise.
The first is the tendency to allow women, but not men, to take advantage of sexual differences.
1620s, from Medieval Latin tendentia "inclination, leaning," from Latin tendens, present participle of tendere "to stretch, aim" (see tenet). Earlier in same sense was tendaunce (mid-15c.), from Old French tendance.